BirdForum is the net's largest birding community dedicated to wild birds and birding, and is absolutely FREE!

Register for an account to take part in lively discussions in the forum, post your pictures in the gallery and more.

Reply to thread

Message: <blockquote data-quote="JANJ" data-source="post: 1378799" data-attributes="member: 20722">Peter is of course right that some argentatus shows a complete black band on p5. And his suggested YLG with a lack of mark on p5, at least on one wing there´s a thin dark mark, doe´s look like a YLG. However, the shape of the black band should also be taken into consideration. Often the band in argetatus is thinner in the middle, perhaps not shaped as a 'W'. and also variable.Of course one can not rely on the pattern on p5 alone - and some argentatus can show a broad black band covering both webs - similar to YLG together with a red orbital ring. But many of those I´ve seen didn´t match up to the amount of black on the rest of the primaries. On the other hand - some YLG show less black on the outer primaries.Note the 'W' shape of the p5 band, rather similar to many smithsonianus:<a href="http://www.pbase.com/stephaubry/image/74225990" target="_blank">http://www.pbase.com/stephaubry/image/74225990</a>JanJ</blockquote>