So that’s what it looked like!
Some of Sheffield bird ringers (SORBY Breck) caught a fascinating Redpoll yesterday. Geoff Mawson and David Williams sent photos through. It’s a corker.
Now here’s the weird thing. I took one look at the pictures and immediately thought of last winters bird. December 2009 and January 2010, a ‘white’ redpoll possibly Arctic was very poorly seen at 70 Acre Hill. Eventually I managed some reasonable views. It was clearly stunning looking with lots of white, but more semi-albino than Arctic, but what a redpoll! It looked just like the bird in these photos.
Remarkable thing is the bird in these photos had a ring on yesterday. So it was a ‘control’. It was rung last year as a normal looking first winter! Presumably something in the local gene pool means that its first adult moult produced these amazing white feathering- and there are more from the same gene pool.
Never heard of that before, a bird ‘moulting into albinism (or leucism).
All photos of ‘white’ Lesser Redpoll, trapped 70 Acre Hill Sheffield, 14th November 2010. Geoff Mawson.