www.gull-research.org

Hello,

I took these pics in Norway (Oslo) a few years ago on the first week of july. Are these all graelsii/intermedius or is there a possible heuglini ?
How can the two taxa be separated when you are dealing with adults in summer?

http://www.flickr.com/photos/48743015@N ... /lightbox/
http://www.flickr.com/photos/48743015@N ... /lightbox/
http://www.flickr.com/photos/48743015@N ... /lightbox/
http://www.flickr.com/photos/48743015@N ... /lightbox/


thanks a lot in advance
Alex Boldrini

It looks the best for graellsii or intermedius... To me.

Theo

...and to me. structurally shorter legged, quite dark mantled which could favour intermedius (the default ssp. in italy, right?), and pale eyed. and it's not as lanky as most heuglini.

lou