tirsdag 18. juli 2017

Revtangen BO July 16-17th

Too windy for trapping, westerlies. We sat down seawatching at Revtangen for 3-4 hours both days, but no sensations and there are few waders in the area (we need easterlies to receive any numbers of adult waders in July). The highlights were 2 Manx Shearwaters migrating north on the 17th, 118 Fulmars on the 17th, 13 Great Skuas on the 16th and 160 adult Sanderlings on the beach to the south on the 16th. 

Alf Tore Mjös and Morten Stokke.

Revtangen BO July 15th

Light winds but mainly from the west. Nets open 07-13, netmeter hours approw. 1900. 

Ringed: Collared Dove 1, Barn Swallow 1, Redwing 2, Sedge Warbler 2, Blackcap 1, Willow Warbler 8, Great Tit 1, Common Starling 2, House Sparrow 21, Tree Sparrow 1, Chaffinch 5, Greenfinch 12, Common Linnet 1, Lesser Redpoll 1, Yellowhammer 3. Total = 62. Also 8 controls.

Ringmerket: Tyrkerdue 1, låvesvale 1, rødvingetrost 2, sivsanger 2, munk 1, løvsanger 8, kjøttmeis 1, stær 2, gråspurv 21, pilfink 1, bokfink 5, grønnfink 12, tornirisk 1, brunsisik 1, gulspurv 3. 

There hasn't been too much nice weather in western Norway so far this summer, so we took the opportunity to present a few common insects from the garden when the sun appeared today:

Young male Sympetrum danae. This species has esteblished a population in the pools we've created in the trapping garden, and they are just hatching now. Svart høstlibelle, hann.

Acleris bergmanniana, very common among the Rosa rugosa in the trapping garden. Roseflatvikler.

The fruit fly Rhagoletis alternata is also common in the roses. Nypeflue

Haematopota plivialis. These ones feed on ringers..... Regnklegg

Alf Tore Mjös


Revtangen BO July 14th

Today we've been working to prepare the bird observatory for the autumn season, "officially" starting in mid-July. One more net was set up around the main pond and extended a little compared to last year. Now we just have to hope that there will be some Green Sandpipers and later Grey Wagtails. Two more of the most worn large nets were replaced with new ones, in addition to some minor repair jobs on a few other nets.

We put up the nets around the feeder for a short while, but there were too many sparrows getting caught so we closed them again so that we could finish with the nets. 

Ringed: Barn Swallow 1, Willow Warbler 2, Great Tit 4, House Sparrow 8, Tree Sparrow 5, Yellowhammer 2. Total = 22. Also 5 controls. 

Observations: Common Quail 1 singing in the fields to the west. 

Haavard Husebö and Alf Tore Mjös

lørdag 24. juni 2017

Revtangen BO June 24th

Some heavy thunderstorms with strong rain in the morning, and nets were not open until shortly before 11. Most nets open until 18, netmeter hours approx. 1600.

Ringed: Collared Dove 1, Meadow Pipit 1, Great Tit 2 (first juveniles), House sparrow 12, Tree Sparrow 1, Common Starling 2, Chaffinch 1, Greenfinch 10, Eurasian Siskin 2, Common Linnet 3, Lesser Redpoll 2. Total =  37. Also 10 controls, including a juvenile Greenfinch not from Revtangen.

Ringmerket: Tyrkerdue 1, heipiplerke 1, kjøttmeis 2, gråspurv 12, pilfink 1, stær 2, bokfink 1, grønnfink 10, grønnsisik 2, tornirisk 3, brunsisik 2. Total = 37. Også 10 kontroller, inkl. en juvenil grønnfink merket annetsteds. 

Observations: Common Quail 1 sining in the fields to the west. 

Alf Tore Mjös. 2 visitors.

søndag 18. juni 2017

Revtangen BO June 18th

Light SW, a bit of rain in the morning, but later around 18 degrees and cloudy. Most nets open 08.30-15.30, netmeter hours approx 1900. 

Ringed: Meadow Pipit 1, Black Redstart 1, House Sparrow 4, Tree Sparrow 6, Common Linnet 2 (first juvenile). Toal = 14. Also 10 controls. 

The surprise of the day was this unseasonal 2cy Black Redstart. Svartrødstjert, 2K.

Ringmerket: Heipiplerke 1, svartrødstjert 1, gråspurv 4, pilfink 6, tornirisk 2. Total = 14. Også 10 kontroller. 

Observations: Seems like Common Ringed Plovers have done reasonably well, there were 19 at Revtangen of which 12 were juveniles. Also 10 Dunlins and 2 Sanderlings at Revtangen. A female Marsh Harrier flew past Reveparken. 

Alf Tore Mjös

onsdag 14. juni 2017

Revtangen BO June 14th

Light SE turning SW, mostly sunny. Nets open 06.45-17.45, netmeter hours approx. 3500. Most of the day there was work in progress in the trapping area, so there was more disturbance than usual. 

Ringed: Collared Dove 2, Meadow Pipit 1, Crested Tit 1, Common Starling 7, House Sparrow 19, Tree Sparrow 1, Greenfinch 1 and Eurasian Siskin 2. Total = 34. Also 17 controls. 

Ringmerket: Tyrkerdue 2, heipiplerke 1, toppmeis 1, stær 7, gråspurv 19, pilfink 1, grønnfink 1 og grønnsisik 2. Total = 34. Også 17 kontroller. 

Crested Tit (1 cy). Less than annual at the BO, but the few we trap are typically in June when the young birds disperse. Toppmeis 1K.

The new wind-breaker was put up today. It will also shield the pond area from traffic on the passing road. A great improvement to the trapping area!

Observations: Grey-headed Wagtail 1 singing in the fields to the west, European Goldfinch one flew over.

Haavard Husebö and Alf Tore Mjös

søndag 11. juni 2017

Revtangen BO June 10th

Light S-SW, mainly cloudy. Nets open 11-18, netmeter hours approx. 2300. The fields west of the station was harvested today, attracting lots of starlings to the area, and some were caught. 

Ringed: Collared Dove 2 (first juvenile), Redwing 1, Common Starling 22, House Sparrow 25, Tree Sparrow 2, Greenfinch 3. Total = 55. 

Ringmerket: Tyrkerdue 2, rødvingetrost 1, stær 22, gråspurv 25, pilfink 2, grønnfink 3. Total = 55. 

Alf Tore Mjøs