tirsdag 22. august 2017

Revtangen BO August 22nd

After a few very windy days with strong westerlies-northwesterlies the wind settled this morning to a light NE, turning N-NW and increasing a bit to make trapping inefficient after lunch. Nets open 06-14, netmeter hours approx. 2900. Playback on Green Sandpiper, Greenshank, Wood Sandpiper, Barn Swallow and Tree Pipit. 

Ringed: Green Sandpiper 5, Common Redshank 1, Barn Swallow 7, Tree Pipit 1, Meadow Pipit 2, European Robin 1, Garden Warbler 1, Common Whitethroat 1, Lesser Whitethroat 1, Willow Warbler 4, Great Tit 1, Eurasian Nuthatch 1 (first this season), Common Starling 14, Tree Sparrow 2, Chaffinch 1, Greenfinch 3 and Common Linnet 1. Total = 47. 

 Surprise of the day was this male Eurasian Nuthatch, a specis we don't catch every year.

Observations: Marsh Harrier adult male, Common Kestrel 2, Spotted Redshank 1 fly-over, Wood Sandpiper 1 (in the net, escaped), Yellow Wagtail 2 fly-overs, Common Crossbill 30 migrating north.

Haavard Husebö and Alf Tore Mjös

Revtangen BO August 19th

Too windy for any trapping and ringing. Today the local Birdlife partner NOF Rogaland held a course in wader identification at the bird observatory. An excellen presentation by Björn Mo was followed by a short excursion down to Revtangen. Despite wind and a few rainshowers a good selection of waders were seen, including adult Grey Plover, juvenile Spotted Redshank and juvenile Black-tailed Godwit (ssp. islandica). 14 participants. 

Sanderlings and Dunlins migrating past Reve kai in the evening.

Mixed wader flock past Reve kai in the evening. Jubenile Red Knot, juvenile Turnstone, adult Sanderlings, adult and juvenile Dunlins.

Renate Berg, Alf Tore Mjös and Björn Mo.

søndag 20. august 2017

Revtangen August 18th

SE turning S, sunny to part cloudy. Too much wind and sun in the nets most of the day. Playback on Green Sandpiper, Wood Sandpiper, Greenshank, Tree Pipit and Barn Swallow. 

Ringed: White Wagtail 1, Tree Pipit 1, Barn Swallow 5, Icterine Warbler 1, Willow Warbler 14, Great Tit 1, Chaffinch 1 and Greenfinch 2. Total = 26. Also 2 controls, including a Barn Swallow not from Revtangen. 

Observations: Around 150 waders at Revtangen, including 50 Red Knot, 1 Ruff, 1 1cy Black-tailed Godwit and an adult Grey Plover. 

Haavard Husebö and Alf Tore Mjös

onsdag 16. august 2017

Revtangen Bo August 16th

Nets open 07-19. SE light breeze turning S-SW, mostly sunny. A few birds in the morning, later very quitet and a bit of sun and wind in most nets. Playback on Green Sandpiper, Wood Sandpiper, Greenshank, Tree Pipit and Barn Swallow. Work in prograss most of the day in the garden. Haavard made a finishing touch to the windbreaker-walls, and we cleared a lot of shrubs and weeds from the trapping area.

Ringed: Dunlin 1, Wood Sandpiper 1, Barn Swallow 1, White Wagtail 1, Tree Pipit 4, Garden Warbler 1, Willow Warbler 11, Common Starling 1, Brambling 1, Common Linnet 1. Total = 

Ringmerket: Myrsnipe 1, grønnstilk 1, låvesvale 1, linerle 1, trepiplerke 4, hagesanger 1, løvsanger 11, stær 1, bjørkefink 1, tornirisk 1. Total = 23. 

The 10th Wood Sandpiper (1 cy) of the season was caught today, and we have more than doubled the all-time total for this species at Revtangen BO. Grønnstilk 1K.

This 1 cy Dunlin was a surprise catch, and the 7th wader species caught in the new garden ponds. Myrsnipe 1K.

Observations: Goshawk 1, Yellow Wagtail 1, Common Crossbill 20 migrating north.

Haavard Husebö and Alf Tore Mjös. 4 visitors.

Revtangen BO August 14th

Light shifting breeze, mostly cloudy. Nets open 06-12, netmeter hours approx. 2100. Playback on Green Sandpiper, Wood Sandpiper, Greenshank, Tree Pipit. 

Ringed: Green Sandpiper 7, Greenshank 1, Common Snipe 4, White Wagtail 3, Tree Pipit 2, Meadow Pipit 2, Northern Wheatear 1, Garden Warbler 1, Common Whitethroat 3, Lesser Whitethroat 1, Willow Warbler 14, Great Tit 1, Common Starling 1, Tree Sparrow 2. Total = 43. A new singe day record again on Green Sandpiper, the fourth Greenshank of the year and a surprising 4 Common Snipe caught in the garden ponds was the highlights, but the first Lesser Whitethroat of the autumn was also a nice catch. 

Ringmerket: Skogsnipe 7, gluttsnipe 1, enkeltbekkasin 4, linerle 3, trepiplerke 2, heipiplerke 2, steinskvett 1, hagesanger 1, tornsanger 3, møller 1, løvsanger 14, kjøttmeis 1, stær 1 og pilfinkt 2, Total = 43. 

Alf Tore Mjøs. 1 besøkende.

onsdag 9. august 2017

Revtangen BO August 8th

Western Norway has had the rainiest summer for about 50 years, and the bad weather is set to continue. A break in the weather today though, with light shifting breeze and - increadibly - no rain! Nets open 06-20, netmeter hours approx. 4500. Playback on Green Sandpiper, Wood Sandpiper, Greenshank, Common Linnet (most of the day), Barn Swallow (afternoon/evening) and Sand Martin (afternoon/evening).

Ringed: Green Sandpiper 6, Barn Swallow 5, Sand Martin 7 (first this season), White Wagtail 6, Fieldfare 4, Common Whitethroat 2, Willow Warbler 19, Chiffchaff 2, Great Tit 3, Common Starling 1, Common Linnet 2. Total = 57. Also 3 controls, including a 1cy Willow Warbler not from Revtangen. 

A record catch of 6 Green Sandpipers today took the 2017 total to 30 ringed. 

Alf Tore Mjös. 3 visitors.

lørdag 5. august 2017

Revtangen BO August 5th

Strong westerlies 10-12 m/s. Tried seawatching from around 8, but little movement apart from 4-5 Great Skuas. Lots of Common Gulls and a few hundred Oystercatchers on the move from around 12. 

Not many waders, but most were fairly concentrated on the north shore so we made an attempt with 6 walk-in traps from 10-16. 

Ringed: Red Knot 1, Dunlin 10, Purple Sandpiper 2, Common Sandpiper 2, Common Redshank 13, Common Starling 1. Total = 29. 

The most typical catch at Revtangen 1937-2017 is a juvenile Dunlin, with more than 42.000 ringed in total.

Juvenile Purple Sandpipers breed in alpine regions in southern Norway. Some arrive at Revtangen before the plumage is fully developed , with lots of downy plumage still in the head and feathers still growing in the tail and wings!

A good number of Common Redshanks was the main target for the traps today, and we are very pleased with 13 caught and ringed (12 1cy, 1 adult). Common Redshanks are ringed with a slightly different colour combintion that the other Tringa-waders, with a yellow marker and an orange flag with a 3-letter inscription. Sightings can be reported to Kjell Mork Soot at kjellmorksoot@fugler.com

Alf Tore Mjøs