Revtangen BO May 25th

Light winds, mostly from NW. Fog much of the day. Nets open 09-21, netmeter hours approx. 4000. 

Ringed: Common Redshank 1, Collared Dove 1, Barn Swallow 2 (first this season), Meadow Pipit 1, Fieldfare 6, Sedge Warbler 1, Common Whitethroat 1, Chiffchaff 2, Common Starling 1, House Sparrow 2, Lesser Redpoll 2, Common Linnet 3. Total = 25. Also 7 controls. 

Ringmerket: Rødstilk 1, tyrkerdue 1, låvesvale 2, heipiplerke 1, gråtrost 6, sivsanger 1, tornsanger 1, gransanger 2, stær 1, gråspurv 2, brunsisik 2, tornirisk 3. Total = 25. Også 7 kontroller. 

Common Redshank trapped in the "Revtangen artificial wetlands". The Norwegian redshank colourringing project use orange flags with a 3-letter inscription on the right tibia and a yellow marker on the left tibia.

Alf Tore Mjös. 2 visitors.

Revtangen BO May 23rd

Very little vind in the morning and later a light SE, but very few migrants around. Nets open 05.30-12.30, netmeter hours approx. 2400. 

Ringed: Sedge Warbler 1, Blackcap 1, Garden Warbler 3, Willow Warbler 1, Chiffchaff 1, Spotted Flycatcher 1, Common Starling 3, House Sparrow 1, Lesser Redpoll 3 and Common Linnet 1. Total = 16, also 7 controls. 

Ringmerket: Sivsanger 1, munk 1, hagesanger 3, løvsanger 1, gransanger 1, gråfluesnapper 1, stær 3, gråspurv 1, brunsisik 3 og tornirisk 1. Total = 16. 

Alf Tore Mjøs

Revtangen BO May 19th-21st

A bit of on-and-off trapping these days, with nets open in the afternoon on the 19th, the morning and early afternoon on the 20th and some hours around mid-dag on the 21st. Not a lot going on, the wind was mainly in "the difficult south". 

In total, birds ringed these 3 days: Common Cuckoo 1 (the first in a few years), Eurasian Skylark 1 (first this season, very rarely caught), White Wagtail 2, Meadow Pipit 1, Song Thrush 1, Fieldfare 4, Sedge Warbler 2, Blackcap 3, Common Whitethroat 3, Lesser Whitethroat 2, Willow Warbler 11, Chiffchaff 3, Spotted Flycatcher 3, House Sparrow 5 (the first juveniles of the season on the 19th), Common Starling 1, Chaffinch 1, Greenfinch 1, Eurasian Siskin 1 (first this season), Lesser Redpoll 11, Common Linnet 3. Total = 59. Also 16 controls. 

Ringmerket: Gjøk 1, sanglerke 1, linerle 2, heipiplerke 1, måltrost 1, gråtrost 4, sivsanger 2, munk 3, tornsanger 3, møller 2, løvsanger 11, gransanger 3, gråfluesnapper 3, gråspurv 5, stær 1, bokfink 1, grønnfink 1, grønnsisik 1, brunsisik 11 og tornirisk 2. Total = 59, også 16 kontroller. 

 Two Painted Ladies were a welcome surprise on the 19th, also at least 5 Red Admirals were seen. Tistelsommerfugl.

Terje Lislevand and Alf Tore Mjös.

Revtangen BO May 17th

Thick fog in the morning hours, and the nets caught little else than water. The fog eventually cleared but a southern 5-7 m/s was far from ideal and the catch was all but impressive. Nets open 06-18, netmeter hours approx. 4000. 

Ringed: Collared Dove 1, Fieldfare 2, Redwing 1, Sedge Warbler 2, Common Whitethroat 3, Willow Warbler 5, Common Starling 2, House Sparrow 1, Chaffinch 1. Total = 18. Also 8 controls, including a Sedge Warbler not from Revtangen. 

Ringmerket: Tyrkerdue 1, gråtrost 2, rødvingetrost 1, sivsanger 2, tornsanger 3, løvsanger 5, stær 2, gråspurv 1, bokfink 1. Total = 18. Også 8 kontroller, inkl. en sivsanger merket annetsteds. 

Observations: 
Revtangen: Brent Goose 3, Common Scoter 70, Long-tailed Duck 1, Bar-tailed Godwit 3, Red Knot 31, Turnstone 17, Purple Sandpiper 1, Dunlin 160, Common Redshank 5, Common Sandpiper 2. 

The doe Roe Deer at the top was courted by the buck in the lower photo, along the gravel road down to Revtangen in the early morning.

Alf Tore Mjös. 1 visitor.

Revtangen BO May 15th

Thick fog in the morning, and the nets were not opened until after 9. Winds from the south 6-8 m/s. Nets open until 18, netmeter hours approx. 2800. 

Ringed: Meadow Pipit 2, Greenland Wheatear 1, Whinchat 1 (first this season), Common Whitethroat 1, Willow Warbler 2, Common Starling 1, House Sparrow 1, Yellowhammer 1. Total = 10. 

Ringmerket: Heipiplerke 2, Steinskvett 1 (leucorhoa), buskskvett 1, tornsanger 1, løvsanger 2, stær 1, gråspurv 1, gulspurv 1. Total = 10.

Observations: Common Quail 1 male singing. 

Alf Tore Mjös

Revtangen BO May 14th

Continued SE. Fewer birds than previous days, but still a decent catch.

Ringed: Wood Pigeon 2, White Wagtail 1, Tree Pipit 3, Greenland Wheatear 1, Common Redstart 3, Blackcap 1, Common Whitethroat 2, Lesser Whitethroat 2, Willow Warbler 16, Chiffchaff 1, Common Starling 3, Lesser Redpoll 3, Common Linnet 1. Total = 39. A Blackcap with a Dutch ring was controlled.

Ringmerket: Ringdue 2, linerle 1, trepiplerke 3, steinskvett 1 (leucorhoa), rødstjert 3, munk 1, tornsanger 2, møller 2, løvsanger 16, gransanger 1, stær 3, brunsisik 3, tornirisk 1. Total = 39. En munk med nederlandsk ring ble kontrollert.

Observations: Gyrfalcon 1 2cy. 

Renate Berg, Espen Helgesen and Haavard Husebö. 

Revtangen BO May 13th

Continued SE, but not as many birds around as yesterday. 

Ringed: European Robin 1, Common Redstart 6, Sedge Warbler 1, Blackcap 1, Garden Warbler 4, Common Whitethroat 1, Lesser Whitethroat 1, Willow Warbler 37, Chiffchaff 1, Pied Flycatcher 8, Spotted Flycatcher 2, Common Starling 2, Lesser Redpoll 2. Total = 67. 

Ringmerket: Rødstrupe 1, rødstjert 6, sivsanger 1, munk 1, hagesanger 4, tornsanger 1, møller 1, løvsanger 37, gransanger 1, svarthvit fluesnapper 8, gråfluesnapper 2, stær 2, brunsisik 2. Total = 67. 
 

Observations: Western Marsh Harrier 1 female. 

Renate Berg, Espen Helgesen and Haavard Husebö

Revtangen BO May 12th

ESE winds all over southern Norway today produced a large fall of migrants, and several bird observatories reported record numbers of birds caught and ringed (more than 600 at Jomfruland, more than 300 at Utsira). A good spring catch at Revtangen also:

Collared Dove 2, White Wagtail 1, Meadow Pipit 1, Common Redstart 11, Greenland Wheatear 1 (first this season), Song Thrush 2, Redwing 2, Blackcap 2, Garden Warbler 1 (first this season), Lesser Whitethroat 7, Common Whitethroat 8, Willow Warbler 91, Chiffchaff 1, Pied Flycatcher 3, Spotted Flycatcher 1 (first this season), House Sparrow 1, Brambling 1, Greenfinch 2, Lesser Redpoll 4, Common Linnet 3. Total = 145.

Ringmerket: Tyrkerdue 2, linerle 1, heipiplerke 1, rødstjert 11, steinskvett (leucorhoa) 1, måltrost 2, rødvingetrost 2, munk 2, hagesanger 1, møller 7, tornsanger 8, løvsanger 91, gransanger 1, svarthvit fluesnapper 3, gråfluesnapper 1, gråspurv 1, bjørkefink 1, grønnfink 2, brunsisik 4, tornirisk 3. Total = 145. 

Haavard Husebö, Renate Berg and Espen Helgesen

Revtangen BO May 6th

Light shifting breeze, mostly sunny. Most nets open 10-21, netmeter hours approx. 3000.

Ringed: Common Redstart 2, Blackcap 3, Willow Warbler 3, Chiffchaff 1, House Sparrow 2, Brambling 1, Greenfinch 1, Common Linnet 1. Total = 14. Also 7 controls. 

Ringmerket: Rødstjert 2, munk 3, løvsanger 3, gransanger 1, gråspurv 2, bjørkefink 1, grønnfink 1, tornirisk 1. Total = 14. Også 7 kontroller. 

Observations: The almost windless conditions provided a rare opportunity to count divers and other birds resting on the sea, so we checked the sea area from Revtangen - Reve kai with the telescope. The count included 87 Great Northern Loons, 5 Red-throated Loons, 180 Common Scoter, 200 Long-tailed Ducks, 8 Razorbill, 7 Common Guillemot and 20 Black Guillemot. 

We tried two Robinson-traps last night but only 3 species of moths caught, includingh this Powdered Quaker (Orthosia gracilis). Punktseljefly. 

A long awaited addition to the lepidoptera list at Revtangen BO: This Emperor Moth (Saturnia pavonia) was attracted with a pheromone-lure. Nattpåfugløye.

A new species of Long-horn Beetle at Revtangen BO was dicovered on a furled-up mistnet, Rhagium inquisitor. Bartreløper.

Alf Tore Mjös. 1 visitor.

Revtangen BO May 5th

Still sunny and very quiet on the migrant front. Light NE in the morning turning SW and then NW in the middle of the day. Nets open 05.15, netmeter hours approx. 3200. 

Ringed: White Wagtail 1, Meadow Pipit 1, European Robin 1, Lesser Whitethroat 1, Willow Warbler 1, Wood Warbler 1, Chiffchaff 3, Common Starling 1, House Sparrow 1, Lesser Redpoll 2, Yellowhammer 1. Total = 14. Also 8 controls, including a Common Blackbird not from Revtangen. 

No doubt the highlight of todays catch, Wood Warbler is less than annual at Revtangen BO but most years we ring one or two. Bøksanger.

Ringmerket: Linerle 1, heipiplerke 1, rødstrupe 1, møller 1, løvsanger 1, bøksanger 1, gransanger 3, stær 1, gråspurv 1, brunsisik 2, gulspurv 1. Total = 14. Også 8 kontroller, inkl. en svarttrost merket annetsteds. 

Observations: Revtangen: Yellow-billed Loon 1, Great Northern Loon 34, Red-throated Loon 18, Black-throated Loon 4, Whimbrel 7, Bar-tailed Godwit 2, Turnstone 1, Gyrfalcon 1 2cy.

Eurasian Curlew with colourrings, just a few hundred meters away from where it wass ringed as a chick in 2013. Storspove. 
 

This male Black-tailed Godwit was feeding close to the colourringed Curlew. The future for this popultion of the nominate subspecies breeding at Jaeren seems dark, after the Norwegian government abandoned the action plan a few years ago. So far we have seen no other initiative to save this species, seems like the governments plan is to wait until its too late - problem solved. Svarthalespove hann. 

Whimbrels and one Bar-tailed Godwit past Revtangen. Småspove og en lappspove. 

Gyrfalcon 2cy. Jaktfalk 2K. 

Another addition to the Revtangen Wetland System was added yesterday and today. We've removed a few trees and bushes and replaced them with another small pool and a small "creek". The plan is to fill parts of the pool and most of the "creek" with water plants.

Haavard Husebö and Alf Tore Mjös. 1 visitor.

 

Revtangen BO May 4th

Still sunny. Light easterlies, turned west around 12. A slight improvement from yesterday regarding birds, but not by much. Nets open 05.30-14.30, netmeter hours approx. 3000. 

Ringed: Meadow Pipit 1, European Robin 2, Common Redstart 1, Blackcap 1, Willow Warbler 11, Chiffchaff 3, Pied Flycatcher 1, Common Starling 1, Mealy Redpoll 4, Lesser Redpoll 2. Total = 27. 

Ringmerket: Heipiplerke 1, rødstrupe 2, rødstjert 1, munk 1, løvsanger 11, grananger 3, svarthvit fluesnapper 1, stær 1,. gråsisik 4, brunsisik 2. Total = 27. 

A team from NRK (Norwegian Broadcasting) paid us a visit today, and a bit of migrant-TV was broadcasted nation-wide in the evening. We also got a visit from a schoolclass from Tryggheim. 

Haavard Husebö and Alf Tore Mjös. 17 visitors, including 12 schoolchildren.

Revtangen BO May 3rd

Light shifting breeze, NE in the morning turning NW just after 9. Part cloudy, 6 degrees around dawn. Compared to the previous days very quiet on the migrant front. Nets open 05-12, netmeter hours 2400.Preliminary work on the foundations for a new windbreaking-wall was finished. 

Ringed: White Wagtail 1, Meadow Pipit 1, Fieldfare 1, Common Blackbird 1, Common Whitethroat 1, Willow Wabler 9, Chiffchaff 1, Pied Flycatcher 1, Mealy Redpoll 1, Lesser Redpoll 1 and Common Linnet 2. Total = 20. Also 7 controls, including a Lesser Redpoll ringed elsewhere, two Willow Warblers from 2016 and a Wood Pigeon from 2012. 

Ringmerket: Linerle 1, heipiplerke 1, gråtrost 1, svarttrost 1, tornsanger 1, løvsanger 9, gransanger 1, svarthvit fluesnapper 1, gråsisik 1, brunsisik 1 og tornirisk 2. Total = 20. Også 7 kontroller, inkl. en brunsisik ringmerket annetsteds. 

Observations: Yellow Wagtail 1 flew over.

Haavard Husebö and Alf Tore Mjös

Revtangen BO May 2nd

Light NE turning NV then S. Sunny. Nets open 06-16, netmeter hours approx. 3400. 

Ringed: Song Thrush 1, Redwing 1, Common Blackbird 3, Ring Ouzel 1, European Robin 3, Common Redstart 2, Sedge Warbler 1, Blackcap 1, Common Whitethroat 3, Willow Warbler 17, Chiffchaff 1, Pied Flycatcher 1, House Sparrow 1, Mealy Redpoll 3, Lesser Redpoll 1, Common Linnet 1.Total = 41. Also 10 controls. 

Ringmerket: Måltrost 1, rødvingetrost 1, svarttrost 3, ringtrost 1, rødstrupe 3, rødstjert 2, sivsanger 1, munk 1, tornsanger 3, løvsanger 17, gransanger 1, svarthvit fluesnapper 1, gråspurv 1, gråsisik 3, brunsisik 1, tornirisk 1. Total = 41. Også 10 kontroller.

Observations: 
Bird Observatory: Pallid Harrier 1, Golden Plover 300. 
Revtangen: Bar-tailed Godwit 10, Grey Plover 2, Grey-headed Wagtail (M.f.flava) 1 male. 

Haavard Husebö, Alf Tore Mjös, Njaal Sölvberg. 1 visitor.

Revtangen May 1st - large fall of migrants

Today a moderately strong ESE displaced a large number of migrants towards the west, and produced a large fall along the coast of Rogaland county. Revtangen BO was no exception, and we had the second best spring day we've had the last ten years. Nets open 05.30-19.30, netmeter hours approx. 4800. ESE turning S around 14.30, after the wind turned the trapping conditions became very difficult. 

Ringed: Wood Pigeon 2, Eurasian Wryneck 1, Tree Pipit 1, European Robin 17, Common Redstart 23, Song Thrush 2, Blackcap 9, Common Whitethroat 4, Lesser Whitethroat 1, Willow Warbler 91, Chiffchaff 27, Pied Flycatcher 6, House Sparrow 1, Lesser Redpoll 1, Common Linnet 5. Total = 192. 

Common Redstarts brightened up the catch today, and 23 is a very high number in one day. 3cy+ male. Rødstjert 3K+ hann.

Ringmerket: Ringdue 2, vendehals 1, trepiplerke 1, rødstrupe 17, rødstjert 23, måltrost 2, munk 9, tornsanger 4, møller 1, løvsanger 91, gransanger 27, svarthvit fluesnapper 6, gråspurv 1, brunsisik 1, tornirisk 5. Total = 192. 

Observations: Gyrfalcon 1 2cy, Peregrine Falcon 1 adult,  Common Kestrel 2, Short-eared Owl 1, Whinchat 2, Mistle Thrush 1 migrating N, Greenshank 2, Green Sandpiper 2.

Renate Berg, Espen Helgesen, Alf Tore Mjös and Morten Stokke. 7 visitors.