www.gull-research.org

hi folks,

some controversy about this bird, photogr. by david on 30th oct. 2013 in west yorks, GB.
images:
http://www.birdforum.net/attachment.php ... 1385673384
http://www.birdforum.net/attachment.php ... 1385675108
http://www.birdforum.net/attachment.php ... 1385794959

discussion started here: http://www.birdforum.net/showthread.php ... 7&page=143 (post 2859)

more opinions please...

lou

I think it is a "Larus polonicus", because the tertials are typical cach-like. Unfortunally there is no colour-ring.

ok, anybody thinking it could also be a michahellis (like me?). i don't see anything that separates it from YLG. head would be allright after postjuvenile moult and bold double anchors are there on scaps. some michas can show such tertial crecents also....

lou