Revtangen BO September 1st

The first day of autumn was a reasonbly good one, with light shifting breeze and part cloudy. The playback on Sylvia-species produced a nice fall of warblers around dawn. Meadow Pipits also responded better than previous days, and contributed to at decent total. Playback on Garden Warbler and Barred Warbler at night, and Meadow/Tree Pipit, Grey Wagtail and European Goldfinch through the day. Nets open 06-16, netmeter hours approx. 3600.

This Collared Dove was already ringed, as and adult in spring 2017. Tyrkerdue 2K+.

Ringed: Wood Pigeon 1, Grey Wagtail 3, Tree Pipit 8, Meadow Pipit 40, European Robin 5, Grasshopper Warbler 1, Common Whitethroat 1, Garden Warbler 18, Blackcap 30, BARRED WARBLER 1, Chiffchaff 2, Willow Warbler 2, House Sparrow 4, Tree Sparrow 2, Common Starling 13, Greenfinch 1, European Goldfinch 1, Eurasian Siskin 26. Total = 159. Also 6 controls, including a Eurasian Siskin not from Revtangen.


Common Starling 1 cy female (top) and male (lower). Females are recognized by a pale ring in the iris. Stær 1K, hunn øverst og hann nederst.


Young Starlings moult all primaries the first autumn, quite unusual but great for learning about moult. The moult starts with the inner primary (p1) and progress outwards. The longest outer paler brown, unmoulted primary is p9, p10 is very short and not visible in this picture. Moult progress is given a score between 0 and 50, an unmoulted feather is 0 and a fully grown one is given the value 5. This bird has p1-7 fully grown, p8 is growing and visible beyond the outer primary coverts, about 1 cm long and gived the value 2. Moult score for this bird is 37.

Alf Tore Mjös, Morten Stokke and Morten Tjemsland. 1 visitor.

Revtangen BO September 1st