delayed moult in LBBG?

alfosse · Post by **alfosse** » Mon Jan 20, 2014 12:44 pm

This bird (no other pictures) taken on 17 Jan 2014 in Western France seems to have a delayed moult.
Could it be a L. f. fuscus? or just a lately born bird (intermedius?)?

Theo Muusse · Post by **Theo Muusse** » Mon Jan 20, 2014 9:46 pm

It may very well be a fuscus, an intermedius I cannot exclude sadly.
Nice bird!

Theo

marsmuusse · Post by **marsmuusse** » Mon Jan 20, 2014 10:42 pm

Hi Alain,
http://www.gull-research.org/lbbg1cy/j0y7dec.htm
Remember this one?

Mars

alfosse · Post by **alfosse** » Tue Jan 21, 2014 3:46 am

Theo Muusse wrote:It may very well be a fuscus, an intermedius I cannot exclude sadly.

Alas yes, I've never succeeded to spot a cr-fuscus here

marsmuusse wrote:http://www.gull-research.org/lbbg1cy/j0y7dec.htm
Remember this one?

Very well, Mars, It's a pity we have no new picture of that bird…

lou bertalan · Post by **lou bertalan** » Tue Jan 21, 2014 7:53 am

hi, totally juvenile plumaged LBBG in midwinter should be not too rare, but http://www.gull-research.org/lbbg1cy/j0y7dec.htm looks much more like a typical intermedius (or graellsii) on heavy built and homogenous dark underparts.
alain's bird has very long wings, is light built and has pale underparts - more like a typical fuscus. unfortunately there's too much variation (and difference between males and females as we all know) in all taxa to be on the safe side with such general statements

but nonetheless this pale long winged bird looks very very fuscus like.

lou

alfosse · Post by **alfosse** » Tue Jan 21, 2014 8:35 am

lou bertalan wrote:... this pale long winged bird looks very very fuscus like.

Thank you Lou, hope we'll find a ringed bird in the future...

adriaens · Post by **adriaens** » Tue Jan 21, 2014 1:34 pm

Alain, did you check the underwing?

http://birdingfrontiers.com/2013/09/23/ ... ltic-gull/

alfosse · Post by **alfosse** » Tue Jan 21, 2014 1:49 pm

adriaens wrote:Alain, did you check the underwing?

http://birdingfrontiers.com/2013/09/23/ ... ltic-gull/

Alas no, I'll try to pay attention next time...
Thank you for your reference.

www.gull-research.org

delayed moult in LBBG?

Re: delayed moult in LBBG?

Re: delayed moult in LBBG?

Re: delayed moult in LBBG?

Re: delayed moult in LBBG?

Re: delayed moult in LBBG?

Re: delayed moult in LBBG?

Re: delayed moult in LBBG?