mandag 16. oktober 2017

Revtangen BO October 16th

Cloudy and NW in the morning, turning W then NE and decreasing to almost no wind. 12 degrees. Nets open 07.30-15.30, netmeter hours approx. 2900. Playback on Redpoll 08-12, Grey Wagtail and European Goldfinch. 

Ringed: Grey Wagtail 1, Winter Wren 12, European Robin 2, Redwing 4 (including 1 coburni), Song Thrush 1, Common Blackbird 3, Fieldfare 1, Chiffchaff 4 (including 1 tristis), Goldcrest 1, Willow Tit 13, Great Tit 9, Blue Tit 71, Eurasian Nuthatch 1, House Sparrow 1, Brambling 15, Greenfinch 26, Lesser Redpoll 11, Mealy Redpoll 139, COUE'S ARCTIC REDPOLL 1, European Goldfinch 8, Yellowhammer 4. Total = 328. One greenfinch ringed elsewhere controlled. 

The first Siberian Chiffchaff of the autumn was ringed today. Sibirgransanger (P.c.tristis).


Ringmerket: Vintererle 1, gjerdesmett 12, rødstrupe 2, rødvingetrost 4 (inkl. 1 coburni), måltrost 1, svarttrost 3, gråtrost 1, gransanger 4 (inkl. 1 tristis), fuglekonge 1, granmeis 13, kjøttmeis 9, blåmeis 71, spettmeis 1, gråspurv 1, bjørkefink 15, grønnfink 26, brunsisik 11, gråsisik 139, POLARSISIK 1, stillits 8, gulspurv 4. Total = 328. Også en fremmedkontroll av grønnfink. 

Observations: Grey-headed Woodpecker 1, Lesser Spotted Woodpecker 1. 

Haavard Husebö and Alf Tore Mjös 

lørdag 14. oktober 2017

Revtangen BO October 14th

The weather is not doing us any favours at the moment. Today the wind was in the WSW, 6-7 m/s, too windy for efficient trapping but we gave it a try with a few nets 11.45-15.45. Netmeter hours approx. 420. Playback on Yellowhammer. 

Ringed: GREY-HEADED WOODPECKER 1, Song Thrush 1, Common Blackbird 7, Blue Tit 66, Great Tit 7, Willow Tit 5, Eurasian Nuthatch 1, Greenfinch 5, Yellowhammer 2. Total = 95. Also 5 controls, including a Blue Tit not from Revtangen.  

Ringmerket: GRÅSPETT 1, måltrost 1, svarttrost 7, blåmeis 66, kjøttmeis 7, granmeis 5, spettmeis 1, grønnfink 5, gulspurv 2. Total = 95. Også 5 kontroller, inkl. en blåmeis merket annetsteds. 

Alf Tore Mjös

mandag 9. oktober 2017

Revtangen BO October 9th

Light SE in the morning, sunny, a few clouds later. 4 degrees at 06.30. Nets open 07-16, netmeter hours approx. 3200. Playback on Common Blackbird and Redwing at dawn, later on Grey Wagtail, European Goldfinch and Redpoll. Another decent arrival of thrushes around dawn, follwed by the first notable movement of Redpolls this autumn. There was also a few flocks of Bramblings migrating. Playback on redpolls proved efficient as usual, resulting in the highest single day total so far i 2017. 

This 1 cy Coue's Arctic Redpoll (C.hornemanni exilipes) was caught among a large catch of Mealy Redpolls. Notice the white undertail coverts. Polarsisik 1K.

Ringed: Lesser Spotted Woodpecker 3, Great Spotted Woodpecker 1, Grey Wagtail 11, Winter Wren 8, European Robin 1, Song Thrush 8, Redwing 52, Common Blackbird 27, Chiffchaff 3, Goldcrest 3, Willow Tit 15, Blue Tit 19, Great Tit 14, Eurasian Nuthatch 2, Brambling 8, Greenfinch 5, European Goldfinch 2, Lesser Redpoll 24, Mealy Redpoll 337, COUE'S ARCTIC REDPOLL 1, Yellowhammer 1. Total = 543. Also 5 controls, including a Blue Tit not from Revtangen. 

Ringmerket: Dvergspett 3, flaggspett 1, vintererle 11, gjerdesmett 8, rødstrupe 1, måltrost 8, rødvingetrost 52, svarttrost 27, gransanger 3, fuglekonge 3, granmeis 15, blåmeis 19, kjøttmeis 14, spettmeis 2, bjørkefink 8 , grønnfink 5, stillits 2, brunsisik 24, gråsisik 337, polarsisik 1, gulspurv 1. Total = 543. Også 5 kontroller, inkl. en blåmeis med fremmed ring. 

Observations: Grey Woodpecker 1.

Ingvald Ekeland, Haavard Husebö and Alf Tore Mjös

søndag 8. oktober 2017

Revtangen BO October 8th

Clears skies and the coldest morning so far this autumn, with only 4,5 degrees at 07. Nets open 07-16, netmeter hours approx. 2800. Playback on Redwing and Blackbird at dawn proved almost too efficient, and well over 100 thrushes were trapped on the first net round. Most nets were closed for  while until we could process that huge catch of thrushes, and no doubt we missed quite a few birds that would otherwise have been caught, including a good number of Grey Wagtails that were attracted to the ponds by playback when the nets were out of action. Playback during the day on Grey Wagtail, Parrot Crossbill and European Goldfinch. 

Two Grey-headed Woodpeckers were trapped today. In an average year only around 10 are ringed in Norway, but it seems there is irruptive movements going on at the moment. Gråspett.

Ringed: GREY WOODPECKER 2, Lesser Spotted Woodpecker 1, Grey Wagtail 4, Winter Wren 13, European Robin 3, Common Blackbird 53, Fieldfare 2, Song Thrush 8, Redwing 105 (new single day record for this species), BARRED WARBLER 1, Blackcap 3, Chiffchaff 3, Goldcrest 6, Long-tailed Tit 9 (first this season), Willow Tit 9, Blue Tit 56, Great Tit 11, Eurasian Nuthatch 5, Chaffinch 1, Brambling 9, Greenfinch 11, European Goldfinch 2, Mealy Redpoll 1, Lesser Redpoll 1, Yellowhammer 2. Total = 321. Also 5 controls, including a Brambling not from Revtangen. 

The first Mealy Redpoll of the autumn was trapped today. Gråsisik.

Observations: Grey Wagtail 15+. There was alst a good number of Parrot Crossbills migrating overhead in the morning, and at least one Little Bunting in the area. 

Asbjörn Folvik, Haavard Husebö and Alf Tore Mjös

lørdag 7. oktober 2017

Revtangen BO October 7th

So far in October we've had gale force winds and rainfall already past the average for the whole month. Today the wind settled but there was still light rain before noon. NW turning NE than back N. Nets open 09-12 and 14-17, had to close several times because of blue tits arriving in numbers impossible to handle for a single person. Netmeter hours approx. 1800. Playback on Grey Wagtail. 

Ringed: Grey Wagtail 6, Meadow Pipit 1, Winter Wren 3, European Robin 1, Redwing 7, Fieldfare 5, Common Blackbird 4, Blackcap 3, Willow Warbler 1, Goldcrest 1, Great Tit 5, Blue Tit 290, Eurasian Nuthatch 1, House Sparrow 1, Tree Sparrow 4, Chaffinch 1, Brambling 4, Greenfinch 8. Total = 346. 

Observations: Lesser Spotted Woodpecker 1 male. 

Jostein Austevik and Alf Tore Mjös

søndag 1. oktober 2017

Revtangen BO October 1st

Poor weather with rain and gale force winds at the moment, but there was a small weather window this morning. Light easterlies in the early morning, turning south and increasing from 10. Nets open 06.30-12, the nets in the south closed from 08.30. Netmeter hours approx. 2000. Playback on Garden Warbler and Radde's Warbler through the night, Redwing at dawn and Olive-backed Pipit, Brambling, Parrot Crossbill and Grey Wagtail during the day. 

Ringed: Winter Wren 2, Dunnock 1, European Robin 11, Common Redstart 2, Redwing 1, Song Thrush 19, Common Blackbird 1, Sedge Warbler 2, Garden Warbler 1, Blackcap 54, Willow Warbler 4, Chiffchaff 1, Spotted Flycatcher 2, Great Tit 1, Blue Tit 37, Willow Tit 1, Common Starling 1, Chaffinch 5, Greenfinch 2, PARROT CROSSBILL 1. Total = 149. 

Ringmerket: Gjerdesmett 2, jernspurv 1, rødstrupe 11, rødstjert 2, rødvingetrost 1, måltrost 19, svarttrost 1, sivsanger 2, hagesanger 1, munk 54, løvsanger 4, gransanger 1, gråfluesnapper 2, kjøttmeis 1, blåmeis 37, granmeis 1, stær 1, bokfink 5, grønnfink 2, FURUKORSNEBB 1.

Male Parrot Crossbill. A rare catch at Revtangen, but there is currently invasive movements of the species in Scandinavia.

Renate Berg and Espen Helgesen.

fredag 29. september 2017

Revtangen September 29th

Too windy yesterday and today for trapping with mistnets. There was around 50 Bar-tailed Godwits at Revtangen though, and we put out 8 walk-in traps between 08-14, mainly aimed at the godwits.

Ringed: Dark-bellied Brent Goose 1, Dunlin 17, Bar-tailed Godwit 30, Common Redshank 1, Turnstone 2, Rock Pipit 1. Total = 52. Also a control of a 1 cy Dunlin not from Revtangen. The Dunlin-total for 2017 now stands at 1007.

Adult female Dark-bellied Brent Goose. The eastern ssp. is a quite scarce migrant in Norway, and this is only the 3rd ever ringed in the country. Ringgås, adult hunn av underarten bernicla.

Observations: Bird Observatory garden: Yellow-browed Warbler 1, Spotted Flycatcher 1. 

Haavard Husebö and Alf Tore Mjös. 5 visitors.

onsdag 27. september 2017

Revtangen BO September 27th

Same weather as the previous days. Unusually warm night at 14-15 degrees, light ESE in the morning, increasing around mid-day. Nets open 06-15, netmeter hours approx. 3300. Playback on Garden Warbler and Yellow-browed Warbler at night, European Robin a dawn, and Grey Wagtail, Olive-backed Pipit and European Goldfinch through the day. 

Ringed: Great Spotted Woodpecker 1, Barn Swallow 1, Meadow Pipit 1, Grey Wagtail 5, Winter Wren 7, Dunnock 3, European Robin 7, Ring Ouzel 1, Fieldfare 1, Song Thrush 7, Redwing 2, Garden Warbler 1, Blackcap 5, Chiffchaff 1, Willow Warbler 2, Goldcrest 2, Willow Tit 3, Coal Tit 10, Blue Tit 34, Bambling 6, European Goldfinch 3, Reed Bunting 1. Total = 104. Also 4 controls. Today the season total went past 5000 birds ringed.

Ring Ouzel, 1 cy female. Ringtrost, 1K F.

In Ring Ouzel, look for 2 generations of great coverts to identify a 1 cy bird. In this one, the 4 outer greater coverts are juvenile, notably shorter than the inner.

We have seen a number of the caddisfly Halesus digitatus in the Robinson-traps this week, a species previously not identified from Revtangen BO.

Haavard Husebö and Alf Tore Mjös

tirsdag 26. september 2017

Revtangen BO September 26th

The weather was much the same as yesterday. Unusually warm, around 15 degrees through the night. Vert light ESE in the morning, increasing to 8-10 m/s after lunch. Mostly cloudy. Nets open 06-18, netmeter hours approx. 3500. Playback on Garden Warbler and Yellow-browed Warbler during the night, European Robin at dawn and Grey Wagtail and European Goldfinch during the day. 

Ringed: Great Spotted Woodpecker 1, Lesser Spotted Woodpecker 1, Grey Wagtail 1. Meadow Pipit 1, Winter Wren 4, European Robin 10, Common Redstart 1, Song Thrush 12, Common Blackbird 4, Garden Warbler 5, Blackcap 8, EASTERN COMMON WHITETHROAT 1, Willow Warbler 6, Chiffchaff 6, Goldcrest 2, Coal Tit 4, Great Tit 3, Blue Tit 21, Tree Sparrow 4, Chaffinch 3, Brambling 1, Yellowhammer 3. Total = 102. Also 6 controls, including a Greenfinch not from Revtangen. 

A very greyish 1 cy Common Whitethroat was trapped today, presumably of eastern origin (S.c.icterops/rubicola). 1K Tornsanger, underart icterops/rubicola. The wing measured 77 mm, very long for a 1 cy Common Whitethroat.


Haavard Husebö and Alf Tore Mjös

mandag 25. september 2017

Revtangen BO September 25th

A bit windy from the ESE around dawn, but the wind soon settled and the morning was pleasant and calm. Sunny most of the day. Playback on Yellow-browed Warbler, European Robin and Garden Warbler during the night, but unlike yesterday with little effect. Playback on Grey Wagtail, Olive-backed Pipit, Yellow-browed Warbler and European Goldfinch during the day. Nets open 06.30-14.30, netmeter hours approx. 2900. 

1 cy Pechora Pipit. First heard calling overhead, tape-lured into a mistnet. The first record of this species at Revtangen BO. Tundrapiplerke.

Ringed: GREY-HEADED WOODPECKER 1, Lesser Spotted Woodpecker 1, Grey Wagtail 4, Meadow Pipit 1, PECHORA PIPIT 1, Winter Wren 3, Dunnock 1, European Robin 6, Common Redstart 1, Song Thrush 3, Garden Warbler 1, BARRED WARBLER 1, Blackcap 4, MARSH WARBLER 1, Willow Warbler 3, Chiffchaff 6, Coal Tit 4, Great Tit 4, Blue Tit 38, House Sparrow 1, Tree Sparrow 2, Lesser Redpoll 1, Common Linnet 1, European Goldfinch 4. Total = 93. Also 10 controls.


Male Grey-headed Woodpecker. The first since 2009. Gråspett.

1 cy Marsh Warbler. The first in 2017, on a rather late date. Myrsanger 1K. 

Horse Chestnut (Pachycnemia hippocastanaria). The first record at Revtangen BO. Smalvingemåler

Asbjörn Folvik, Haavard Husebö and Alf Tore Mjøs. 6 visitors.



søndag 24. september 2017

Revtangen BO September 24th

A clear sky around midnight was cloud-covered in the morning, but no rain. Light SE turning S around mid-day. Nets open 06.30-13.30, netmeter hours approx. 2500. Playback on Yellow-browed Warbler, European Robin and Garden Warbler through the night, Song Thrush at dawn and Grey Wagtail, European Goldfinch, Olive-backed Pipit and Yellow-browed Warbler during the day. 

Ringed: Great Spotted Woodpecker 3, Grey Wagtail 2, Meadow Pipit 1, Winter Wren 5, Dunnock 1, Northern Wheatear 2, European Robin 37, Song Thrush 2, Redwing 1, Common Blackbird 1, Blackcap 27, Garden Warbler 3, Lesser Whitethroat 1, Willow Warbler 3, Chiffchaff 4, Coal Tit 5, Blue Tit 6, Great Tit 4, Tree Sparrow 4, House Sparrow 1, Chaffinch 1, Brambling 3, Greenfinch 2, Lesser Redpoll 1, European Goldfinch 1, Reed Bunting 3. Total = 124. Also 5 controls. 

Lesser Whitethroat 2cy+. We rarely catch adults in autumn. Notice pale upperpart to iris, the fresh tail and tail pattern. Møller 2K+. 

Ringmerket: Flaggspett 3, vintererle 2, heipiplerke 1, gjerdesmett 5, jernspurv 1, steinskvett 2, rødstrupe 37, måltrost 2, rødvingetrost 1, svarttrost 1, munk 27, hagesanger 3, møller 1, løvsanger 3, gransanger 4, svartmeis 5, blåmeis 6, kjøttmeis 4, pilfink 4, gråspurv 1, bokfink 1, bjørkefink 3, grønnfink 2, brunsisik 1, stillits 1, sivspurv 3. Total = 124. Også 5 kontroller.  

3 Robinsontraps produced 19 species. For the second day in  arow we trapped a Pearly Underwing. Other presumed migrants included 9 Dark Sword-grass and 4 Silver Y. The most rare by Revtangen-standards was our second record of Black Rustic (Aporophyla nigra).

Pearly Underwing. A much paler version of this variable species compared to the one yesterday. Vandrefly.

Black Rustic. Stort lyngheifly.


 Renate Berg, Espen Helgesen, Alf Tore Mjøs, Morten Stokke. 2 besøkende. 


lørdag 23. september 2017

Revtangen BO September 23rd

Light SE in the morning, cloudy, later more sunny and the wind turned south from around 13. Nets open 06.30-16, netmeter hours approx. 3400. Playback on Yellow-browed Warbler and Garden Warbler at night, European Robin and Song Thrush at dawn, and Grey Wagtail, Olive-backed Pipit, Meadow Pipit and European Goldfinch during the day. 

Ringed: Great Spotted Woodpecker 3, Lesser Spotted Woodpecker 1, Grey Wagtail 1, Tree Pipit 1, Meadow Pipit 10, Winter Wren 4, European Robin 18, Common Redstart 1, Redwing 6, Song Thrush 3, Fieldfare 1, Common Blackbird 3, Garden Warbler 5, Blackcap 11, Willow Warbler 2, Chiffchaff 4, Yellow-browed Warbler 1 (first this season), Goldcrest 3, Pied Flycatcher 1, Coal Tit 1, Great Tit 3, Blue Tit 1, Eurasian Nuthatch 1, Tree Sparrow 2, Chaffinch 3, Brambling 4, Greenfinch 6, Lesser Redpoll 1, Common Rosefinch 1, LITTLE BUNTING 2 (first this season) , Reed Bunting 2. Total = 106. 

A good start to the day - Common Rosefinch, Yellow-browed Warbler and 2 Little Buntings! Rosenfink, gulbrynsanger og 2 dvergspurv.

Ringmerket: Flaggspett 3, dvergspett 1, vintererle 1, trepiplerke 1, heipiplerke 10, gjerdesmett 4, rødstrupe 18, rødstjert 1, rødvingetrost 6, måltrost 3, gråtrost 1, svarttrost 3, hagesanger 5, munk 11, løvsanger 2, gransanger 4, gulbrynsanger 1, fuglekonge 3, svarthvit fluesnapper 1, svartmeis 1, kjøttmeis 3, blåmeis 1, spettmeis 1, pilfink 2, bokfink 3, bjørkefink 4, grønnfink 6, brunsisik 1, rosenfink 1, dvergspurv 2, sivspurv 2. Total = 106.

Little Bunting (top) and Yellow-browed Warbler. Dvergspurv og gulbrynsanger.

3 Robinsontraps produced no less than 27 Dark Sword-grass and this Pearly Underwing, so there is evidently some moth migration going on. Vandrefly. 

Observations:  
Revtangen: White-tailed Eagle 1 imm, Bar-tailed Godwit 30, Curlew Sandpiper 2, Little Stint 6, Grey Plover 3, Dunlin 300+. 
Observatory: Black Woodpecker 1, Goldfinch 3+.


Renate Berg, Espen Helgesen, Alf Tore Mjös and Morten Stokke.

torsdag 21. september 2017

Revtangen BO September 21st

A day much like yesterday, poor conditions for ringing but we gave it a try because of a visiting school class. The wind turned SE and increased to 10-12 m/s, a few light rainshowers. Only those nets most protected from the wind was in use 07-15. Netmeter hours approx. 1200. Playback on Garden Warbler and Yellow-browed Warbler during the night, and Meadow Pipit for a few hours in late morning.

Ringed: Meadow Pipit 10, European Robin 1, Redwing 1, Song Thrush 1, Reed Warbler 1, Garden Warbler 2, Greenfinch 1. Total = 17. Also 6 controls.

Observations: Yellow-browed Warbler 1 in the garden.

We put out 2 Robinson Traps, and despite rather poor weather we got a nice selection og late autumn moths, 15 species including 10 Dark Sward-grass and

Dark Sword-grass, consideret a migrant species. 10 last night was a very good catch of this species. Langvingejordfly.
 Red Sword-grass, a scarce species that winters as an adult. Svartkantkvistfly.
Angle Shades, quite common in late autumn. Taggvingefly.
Frosted Orange, a true Revtangen speciality. This is the 16th individual recorded in Western Norway, and the 15th at Revtangen! Tistelstengelfly.

Haavard Husebö and Alf Tore Mjös. We had a visit from 20 students and 1 teacher from Sandnes VGS.

onsdag 20. september 2017

Revtangen BO September 20th

West 5-6 m/s, rainshowers. Poor conditions for ringing, and the only reason for trying was because of a scheduled group visit. Nets open 07-11, netmeter hours approx. 1400. Playback og Grey Wagtail and Meadow Pipit. 

Ringed: Great Spotted Woodpecker 1, Meadow Pipit 6, Grey Wagtail 2, Goldcrest 1, Coal Tit 1, Willow Tit 1, Greenfinch 1. Total = 13. 

Haavard Husebö and Alf Tore Mjös. 17 visitors from Jaeren Senior University.

tirsdag 19. september 2017

Revtangen BO September 18th

Very light SE turning S-SW. Cloudy, later a bit of sun. Nets open 06.30-14.30, netmeter hours approx. 2900. Playback on Garden Warbler at dawn, later Grey Wagtail, Meadow Pipit and Olive-backed Pipit. In addition to ringing, there was time for a bit of maintenance on the nets and cutting the grass.

Ringed: BLACK WOODPECKER 1, Great Spotted Woodpecker 3, Tree Pipit 2, Meadow Pipit 49, Grey Wagtail 9, Winter Wren 3, BARRED WARBLER 1 (first this season), Garden Warbler 1, Blackcap 1, Chiffchaff 3, Goldcrest 1, Coal Tit 2, Great Tit 2, Tree Sparrow 3, Brambling 1, Greenfinch 6, Yellowhammer 2, Reed Bunting 1. Total = 91. Also 12 controls. 

Female Black Woodpecker, a rare catch at Revtangen BO. Svartspett hunn.

Ringmerket: SVARTSPETT 1, flaggspett 3, trepiplerke 2, heipiplerke 49, vintererle 9, gjerdesmett 3, hauksanger 1, hagesanger 1, munk 1, gransanger 3, svartmeis 2, kjøttmeis 2, pilfink 3, bjørkefink 1, grønnfink 6, gulspurv 2, sivspurv 1. Total = 91. Også 12 kontroller. 

The first Barred Warbler of the autumn was trapped today. As usual, a 1cy. Hauksanger 1K. 

Haavard Husebö and Alf Tore Mjös. Today we also had a visit from 13 kids and 2 teachers from Tryggheim Skole.

mandag 18. september 2017

Revtangen BO September 17th

Nets open 06-14, netmeter hours approx. 2900. Playback on Garden Warbler and Pallas' Grasshopper Warbler at night, European Robin at dawn and Grey Wagtail and Olive-backed Pipit during the day. 

Ringed: Great Spotted Woodpecker 3, Tree Pipit 1, Meadow Pipit 3, Grey Wagtail 3, Winter Wren 3, European Robin 12, Whinchat 1, Redwing 1, Song Thrush 2, Common Blackbird 2, Garden Warbler 8, Blackcap 17, Common Whitethroat 1, Willow Warbler 1, Chiffchaff 4, Goldcrest 8, Great Tit 2, Blue Tit 1, Willow Tit 1, Eurasian Nuthatch 1, Common Treecreeper 2, House Sparrow 1, Greenfinch 2, Brambling 2, European Goldfinch 1, Yellowhammer 3, Reed Bunting 2. Total = 88. Also 4 controls.

European Goldfinch, 1 cy. The first in 2017. Stillits, 1K. 

Ringmerket: Flaggspett 3, trepiplerke 1, heipiplerke 3, vintererle 3, gjerdesmett 3, rødstrupe 12, buskskvett 1, rødvingetrost 1, måltrost 2, svarttrost 2, hagesanger 8, munk 17, tornsanger 1, løvsanger 1, gransanger 4, fuglekonge 8, kjøttmeis 2, blåmeis 1, granmeis 1, spettmeis 1, trekryper 2, gråspurv 1, grønnfink 2, bjørkefink 2, stillits 1, gulspurv 3, sivspurv 2. Total = 88. Også 4 kontroller.

Renate Berg and Espen Helgesen.

Revtangen BO September 16th

Nets open 06-14, netmeter hours approx. 2900. Playback on Garden Warbler and Pallas' Grasshopper Warbler at night, European Robin at dawn, and Grey Wagtail, Olive-backed Pipit and Meadow Pipit during the day (only one hours with playback on Meadow Pipit). 

Ringed: Water Rail 1, Great Spotted Woodpecker 7, Lesser Spotted Woodpecker 1, Grey Wagtail 9, Meadow Pipit 30, Winter Wren 6, Dunnock 1, European Robin 5, Song Thrush 3, Redwing 2, Grasshopper Warbler 2, Reed Warbler 1, Garden Warbler 6, Blackcap 13, Common Whitethroat 1, Willow Warbler 4, Chiffchaff 2, Goldcrest 6, Coal Tit 5, Great Tit 1, Willow Tit 2, Eurasian Nuthatch 3, Treecreeper 1, Chaffinch 4, Brambling 3, Greenfinch 5, Yellowhammer 1. Total = 125. Alsoi 9 controls, including Greenfinch and Chiffchaff not from Revtangen. 

Ringmerket: Vannrikse 1, flaggspett 7, dvergspett 1, vintererle 9, heipiplerke 30, gjerdesmett 6, jernspurv 1, rødstrupe 5, måltrost 3, rødvingetrost 2, gresshoppesanger 2, rørsanger 1, hagesanger 6, munk 13, tornsanger 1, løvsanger 4, gransanger 2, fuglekonge 6, svartmeis 5, kjøttmeis 1, spettmeis 3, trekryper 1, bokfink 4, bjørkefink 3, grønnfink 5, gulspurv. 1. Total = 125. Også 9 kontroller, inkl. gransanger og grønnfink merket annetsteds.

The first Water Rail this season was trapped today. As usual, a 1cy.  Vannrikse 1K.
Lesser Spotted Woodpecker male. Dvergspett hann. 
Renate Berg and Espen Helgesen.

søndag 10. september 2017

Revtangen Septamber 9th - Wader ringing

The bad weather with wind and rain yesterday brought an increase of waders to Revtangen. We put out 9 walk-in traps from 9-19, and also 7 clapnets for a few hours. Despite lots of disturbance from walkers and photographers we still managed a good catch.

Ringed: Bar-tailed Godwit 10, Common Ringed Plover 4, Dunlin 273, Sanderling 6, Curlew Sandpiper 1, Little Stint 3, Red Knot 6, Redshank 1, Turnstone 12, Rock Pipit 2, Common Starling 4. 

Ringmerket: Lappspove 10, sandlo 4, myrsnipe 273, sandløper 6, tundrasnipe 1, dvergsnipe 3, polarsnipe 6, rødstilk 1, steinvender 12, skjærpiplerke 2, stær 4. Total = 322. 

An adult Pectoral Sandpiper frequented the trapping area today, but not the walk-in traps......Alaskasnipe. 

Haavard Husebö and Alf Tore Mjös.

fredag 8. september 2017

Revtangen BO September 7th

Most nets open 07-11, rain after that. Netmeter hours approx. 1200. Playback on Tre Pipit, Meadow Pipit and Grey Wagtail. 9 Walk-in traps at Revtangen ca. 14-17.

Ringed: Bar-tailed Godwit 2, Dunlin 32, Red Knot 3, Sanderling 8, Turnstone 2, Grey Wagtail 4, Tree Pipit 1, Meadow Pipit 35, Rock Pipit 1, Winter Wren 1, Blackcap 1, Willow Warbler 1, Chiffchaff 1, Goldcrest 2, Greenfinch 1. Total = 95. 

Ringmerket: Lappspove 2, myrsnipe 32, polarsnipe 3, sandløper 8, steinvender 2, vintererle 4,  trepiplerke 1, heipiplerke 35, skjærpiplerke 1, gjerdesmett 1, munk 1, løvsanger 1, gransanger 1, fuglekonge 2, grønnfink 1. Total = 95.

The first Rock Pipit we've trapped in a long time was duly equipped with a yellow colourring from the Norwegian Rock Pipit project. Any sightings of birds with yellow rings or green rings can be reported to kjellmorksoot@fugler.com. Skjærpiplerke.

Haavard Husebö and Alf Tore Mjös.

onsdag 6. september 2017

Revtangen BO September 6th

After terrible weather with rain and strong SE yesterday the number of waders at Revtangen had increased. We put up mistnets 08.30-12 and used 9 walk-in traps and 7 clapnets at Revtangen from around 13-19.30. Playback on Meadow Pipit 08.30-11. 

Ringed: Bar-tailed Godwit 17, Dunlin 69, Red Knot 5, Sanderling 7, Turnstone 1, Common Ringed Plover 2, Common Redshank 2, White Wagtail 1, Meadow Pipit 61, European Robin 1, Blackcap 2, Common Whitethroat 1, Eurasian Nuthatch 1, Chaffinch 2, Brambling 4, Greenfinch 1, Common Linnet 1, Yellowhammer 1. Total = 179. Also 4 controls, including the first ever Bar-tailed Godwit with a ring from Finland found in Norway. 

Ringmerket: Lappspove 17, myrsnipe 69, polarsnipe 5, sandløper 7, steinvender 1, sandlo 2, rødstilk 2, linerle 1, heipiplerke 61, rødstrupe 1, munk 2, tornsanger 1, spettmeis 1, bokfink 2, bjørkefink 4, grønnfink 1, tornirisk 1, gulspurv 1. Total = 179. Også 4 kontroller, inkl. den forste lappspoven med finsk ring noen gang funnet i Norge.

BIRDIE NAM-NAM: 18 Bar-tailed Godwits were colourringed today, including a juvenile with a ring from Finland. Only one adult aming them.

Haavard Husebö, Alf Tore Mjös, Renate Berg and Espen Helgesen. 3 visitors.

mandag 4. september 2017

Revtangen BO September 4th

Very light SE to no wind at all in the early morning, sunny and then gradually more cloudy. Increasing wind from SE-SSE, from around 11 trapping was inefficient because of wind. Playback through the night on Garden Warbler, Reed Warbler, Grasshopper Warbler and Aquatic Warbler. Later in the morning on Grey Wagtail, Tree Pipit, Meadow Pipit and Eurasian Nuthatch. 

Ringed: Sparrowhawk 1 (1cy female, first this season), Great Spotted Woodpecker 2, Meadow Pipit 23, Tree Pipit 2, "Greenland" Wheatear 1, European Robin 1, Grasshopper Warbler 3, BLYTH'S REED WARBLER 1, Garden Warbler 10, Blackcap 6, Common Whitethroat 3, Willow Warbler 5, Goldcrest 1, Spotted Flycatcher 1, Great Tit 1. Total = 61. 

Blyth's Reed Warbler 1cy. Notice plain tertials, short primary projection and short p2. Busksanger 1K.


Ringmerket: Spurvehauk 1 (første i 2017), flaggspett 2, heipiplerke 23, trepiplerke 2, "Grønlands"steinskvett 1, rødstrupe 1, gresshoppesanger 3, BUSKSANGER 1, hagesanger 10, munk 6, tornsanger 3, løvsanger 5, fuglekonge 1, gråfluesnapper 1, kjøttmeis 1. Total = 61. 

Grasshopper Warblers (1cy). Aged by fresh plumage. The under-tail coverts on one of the birds was slightly atypical, with the dark smudge centered around the feather shaft in a manner similar to Lanceolated Warbler, but in the latter species the streaks are thinner and doesn't reach the base of the feathers like they do on this Grasshopper Warbler. The pictures show two different individuals.
Gresshoppesanger 1K. 

Observations: The increasing SE brought a few raptors, including adult female Marsh Harrier, 1cy Hen Harrier, 5-7 Sparrowhawks, 2 Common Kestrels and a Peregrine. Apart from that little of notice apart from a couple of Grey Wagtails and a Nuthatch.

Alf Tore Mjøs. 1 visitor.

søndag 3. september 2017

Revtangen BO September 3rd

Very ligh easterlies to no wind at all in the morning. Later increasing from the SW and very little trapped after 12. Playback on Garden Warbler, Reed Warbler, Aquatic Warbler and Grasshopper Warbler brought a small fall of warblers just after dawn, and the day produced a typical nice selection of early autumn migrants. Nets open 06-16, netmeter hours approx. 3600. Playback on Grey Wagtail, Tree Pipit, Meadow Pipit and Eurasian Nuthatch later in the morning/day. 

Ringed: Green Sandpiper 1, Lesser Spotted Woodpecker 1, Barn Swallow 1, Grey Wagtail 4, Tree Pipit 4, Meadow Pipit 88, Winter Wren 1, Dunnock 1, "Greenland" Wheatear 1, Common Redstart 1, European Robin 1, Grasshopper Warbler 1, Sedge Warbler 1, Reed Warbler 2, Garden Warbler 14, Blackcap 12, Common Whitethroat 1, Willow Warbler 5, Goldcrest 2, Great Tit 1, Eurasian Nuthatch 2, Treecreeper 1, Pied Flycatcher 1, Tree Sparrow 6, Chaffinch 1, Reed Bunting 1. Total = 155. Also 5 controls. 

Lesser Spotted Woodpecker, 1cy female. First this season. 1K F dvergspett.


Observations: Hen Harrier 2cy male, Sparrowhawk 5, Common Kestrel 1, Ruff 50, Great Spotted Woodpecker 2. 

Alf Tore Mjös and Morten Stokke

Revtangen BO September 2nd

Quite strong NW during the night gave way for a light NE in the morning. No playback at night, but we put up most nets (apart from the ones in the north) from 07.15-14.30. Netmeter hours approx. 2200. Playback on Meadow Pipit, Tree Pipit and Grey Wagtail. 

Ringed: White Wagtail 1, Tree Pipit 2, Meadow Pipit 58, Blackcap 1, Willow Warbler 2, Chaffinch 1, Brambling 1, Yellowhammer 2. Total = 68. Also a control of a 1cy Meadow Pipit not from Revtangen. 

Ringmerket: Linerle 1, trepiplerke 2, heipiplerke 58, munk 1, løvsanger 2, bokfink 1, bjørkefink 1, gulspurv 2. Total = 68. Også en kontroll av en heipiplerke med fremmed norsk ring.

Today we caught an unusually large Meadow Pipit. The birds was an adult, as shown by the complete set of adult feathers on all wing coverts. The wing measured 90,5 mm, by far the longest wing we've ever seen on a Meadow Pipit.

Alf Tore Mjös

torsdag 31. august 2017

Revtangen BO August 31st

Light NE turning NW, increasing. Mostly sunny or part cloudy, but a few rainshowers in the afternoon. Most of the waders seems to have left overnight, so today it was back to trapping passerines in the trapping garden. Playback on Garden Warbler, Aquatic Warbler and Reed Warbler through the nigth, and Grey Wagtail, Tree Pipit, Meadow Pipit and Eurasian Siskin during the day. Nets open 06-17, netmeter hours approx. 4000. 

Ringed: Collared Dove 1, Tree Pipit 5, Meadow Pipit 49, European Robin 2, Sedge Warbler 5, Reed Warbler 4, Garden Warbler 21, Blackcap 8, Common Whitethroat 3, Willow Warbler 7, Goldcrest 1, Coal Tit 1, Eurasian Nuthatch 1, Common Starling 3, Chaffinch 1, Greenfinch 1. Total = 113. Also 5 controls. 

Ringmerket: Tyrkerdue 1, trepiplerke 5, heipiplerke 49, rødstrupe 2, sivsanger 5, rørsanger 4, hagesanger 21, munk 8, tornsanger 3, løvsanger 7, fuglekonge 1, svartmeis 1, spettmeis 1, stær 3, bokfink 1, grønnfink 1. Total = 113. 

Observations: Marsh Harrier 1 1cy, Sparrowhawk 1, Peregrine Falcon 2, Great Spotted Woodpecker 2, Grey Wagtail 3, Eurasian Nuthatch 3, Common Crossbill 8, Eurasian Siskin 200 migrating N. 

Haavard Husebö, Alf Tore Mjös and Njaal Sölvberg.

onsdag 30. august 2017

Revtangen BO August 30th

SW light breeze, mostly sunny. Still good numbers of waders at Revtangen, and we operated 9 walk-in traps and 7 clapnets from 10-20. 

Ringed: Dunlin 125, Red Knot 24, Little Stint 3, Sanderling 67, Common Redshank 7, Turnstone 10, Common Ringed Plover 10, Common Starling 10. Total = 256.

Ringmerket: Myrsnipe 125, polarsnipe 24, dvergsnipe 3, sandløper 67, rødstilk 7, steinvender 10, sandlo 10, stær 10. Total = 256. 

 Wader ringing at the outdoor office at Revtangen.

Part of the 150 or so Sanderling flock frequenting the north beach at Revtangen today. 7 walk-in traps were sat to catch these and other waders on the north shore, and an astonishing 67 Sanderlings were caught! Sandløper og myrsniper.


Renate Berg, Espen Helgesen, Haavard Husebö and Alf Tore Mjös. 16 students and a teacher from Bryne VGS came along for a ringing demonstration.

tirsdag 29. august 2017

Revtangen BO August 29th

Strong wind yesterday and no ringing. Today there was rain in the morning and we had to wait until around 11 to put out 9 walk-in traps and 7 clapnets at Revtangen. Still quite a lot of waders, mostly Dunlins, but the water level and wave action was higher and there was also more waves than last Sunday. Therefore we could not put walk-in traps in the best spots on the north side, somewhat limiting the catch. 

Ringed: Dunlin 146, Sanderling 12, Curlew Sandpiper 1, Little Stint 1, Red Knot 16, Common Redshank 8, Common Ringed Plover 6, Turnstone 5, Common Starling 1. Total = 196.

Ringmerket: Myrsnipe 146, sandløper 12, tundrasnipe 1, dvergsnipe 1, polarsnipe 16, rødstilk 8, sandlo 6, steinvender 5, stær 1. Total = 196.

Observations: Brent Goose 150 migrating south. A flock of 55 stopped briefly at Revtangen, all were adult birds. Curlew Sandpiper 3, Little Stint 3, Spotted Redshank 1, Wood Sandpiper 1. 

Renate Berg, Haavard Husebö and Alf Tore Mjös

mandag 28. august 2017

Revtangen BO August 27th - Open day

Today was "Open day". Once a year, normally the last Sunday of August, we open up the bird observatory to the public from 09-15. Visitors can join a netround, we have of course ringing demonstrations, stuff to do for kids indoors and a small kafé. The local BirdLife partner NOF also has a stand, and helps out with the arrangements. The weather was, increadibly enough, very nice with almost no wind and mostly sunny. A bit too nice for efficient mist-netting.

Nets were open 06-16, netmeter hours approx. 3600. Playback on Garden Warbler, Reed Warbler, Grasshopper Warbler and Aquatic Warbler through the night, and Tree Pipit, Meadow Pipit and Grey Wagtail during the day. Also 7 walk-in traps, 7 wader clapnets and 6 baited claptraps at Revtangen from 08-19. 

Ringed: Dunlin 241, Sanderling 12, Little Stint 1, Common Redshank 10, Spotted Redshank 1, Common Ringed Plover 8, Turnstone 4, White Wagtail 1, Tree Pipit 15, Meadow Pipit 19, Winter Wren 1, Dunnock 1, Northern Wheatear 2, Common Redstart 1, European Robin 3, Grasshopper Warbler 5, Sedge Warbler 2, Garden Warbler 20, Blackcap 3, Common Whitethroat 2, Lesser Whitethroat 1, Willow Warbler 5, Coal Tit 1, Eurasian Nuthatch 1, Common Starling 14, House Sparrow 2, Tree Sparrow 1, Chaffinch 2, Greenfinch 1 and Common Linnet 1. Total = 381. 

A good wader catch today, and in the afternoon after most people had left the beach we also succeeded in catching 10 Common Redshank (left) and 1 Spotted Redshank. Rødstilk (venstre) og sotsnipe.

Ringmerket: Myrsnipe 241, sandløper 12, dvergsnipe 1, rødstilk 10, sotsnipe 1, sandlo 8, steinvender 4, linerle 1, trepiplerke 15, heipiplerke 19, gjerdesmett 1, jernspurv 1, steinskvett 2, rødstjert 1, rødstrupe 3, gresshoppesanger 5, sivsanger 2, hagesanger 20, munk 3, tornsanger 2, møller 1, løvsanger 5, svartmeis 1, spettmeis 1, stær 14, gråspurv 2, pilfink 1, bokfink 2, grønnfink 1, tornirisk 1. Total = 381. 

Observations: A flock of 26 Black-tailed Godwits migrated west at Revtangen. Also a few Peregrines and at least one Merlin at Revtangen. Fly-overs at the observatory included Great Spotted Woodpecker, Yellow wagtail and 2 Grey Wagtails.

Ringers: Renate Berg, Asbjörn Folvik, Haavard Husebö, Alf Tore Mjös, Björn Mo and Morten Stokke. A big thanks to everyone who participated in another successfull "Open day" at Revtangen BO! 200 people visited, including 70 children.

Revtangen BO August 26th

Very weak easterlies in the morning, a few light rainshowers and a quite heavy cloudcover. Nets open 06-13, netmeter hours approx. 2500. Playback on Reed Warbler, Grasshopper Warbler and Garden Warbler throgh the night, later Green Sandpiper, Wood Sandpiper, Greenshank, Tree Pipit and Meadow Pipit. 7 Walk-in traps at Revtangen from around 14-19, in part to prepare for "Open day" at Revtangen BO tomorrow. 

Ringed: Dunlin 82, Curlew Sandpiper 1, Sanderling 5, Green Sandpiper 1, Common Redshank 1, Red Knot 3, Common Ringed Plover 1, Tree Pipit 1, Meadow Pipit 6, Northern Wheatear 2, Fieldfare 1, Gresshoppesanger 3, Reed Warbler 3, Common Whitethroat 5, Garden Warbler 4, Willow Warbler 8, Great Tit 1, Eurasian Nuthatch 1, Common Starling 8, Chaffinch 1 and Common Linnet 2. Total = 140. Also a control of a Norwegian 1cy Dunlin not from Revtangen. 

Ringmerket: Myrsnipe 82, tundrasnipe 1, sandløper 5, skogsnipe 1, rødstilk 1, polarsnipe 3, sandlo 1, trepiplerke 1, heipiplerke 6, steinskvett 2, gråtrost 1, gresshoppesanger 3, rørsanger 3, tornsanger 5, hagesanger 4, løvsanger 8, kjøttmeis 1, spettmeis 1, stær 8, bokfink 1, tornirisk 2. Total = 140. En fremmed norsk myrsnipe ble kontrollert på Revtangen.

Renate Berg, Espen Helgesen and Alf Tore Mjös

fredag 25. august 2017

Revtangen BO August 24th

Nets open 06-15, netmeter hours approx. 3200. Cloudy, periods with rain. Playback on Garden Warbler, Reed Warbler and Grasshopper Warbler through the night, Green Sandpiper, Wood Sandpiper, Greenshank, Tree Pipit and (last part og the day) Meadow Pipit. 

Ringed: Green Sandpiper 1, Wood Sandpiper 1, Meadow pipit 20, White Wagtail 1, Northern Wheatear 1, Grasshopper Warbler 1, Reed Warbler 3, Garden Warbler 14, Blackcap 1, Common Whitethroat 1, Chaffinch 1, Common Rosefinch 1 (first this season). Total = 58. Also 5 controls.

The first Common Rosefinch of the season was trapped today. As usual, it was a 1cy. Rosenfink 1K.

2 cy+ Reed Warbler (top) and 2cy+ Garden Warbler. We trap very few adults of these species, and both on the same day was a rare opportunity to show them together. Both are aged as adults by the generally worn plumage, often most pronounced on the tertials but clearly visible also in the primaries. The Garden Warbler has replaced most of the tail apart from the central pair. Rørsanger (øverst) og hagesanger. Begge 2K+.

Haavard Husebö, Alf Tore Mjös and Njaal Sölvberg.