gulls (4 Viewers)

[ody]

Here two pics made last July in West Greece.
A friend of me sended these pics , but we are not sure what they are.
Have you any idea?

 

[Cristian Mihai]

I would go with 1cy Yellow-legged Gull.

 

[lou salomon]

yes, recently fledged, juvenile michahellis.

 

[lou salomon]

comparisons of 2-4cy caspian/michas

5 new pics here: http://lou.bertalan.de/birds/
old pics actually of the nice february 2008 in herastrau park, seen by cristian. they show both species in each of the pics; even though they are not the best quality the individual birds and their behaviour on ice are breathtaking.

 

[Cristian Mihai]

Lou, don't forget my last pics with 3cy Caspian Gulls from Dambovita
http://www.birdforum.net/showthread.php?t=157762

 

[lou salomon]

i have much to put online, cristian, tons of your pics from the past 2 years

 

[Cristian Mihai]

i have much to put online, cristian, tons of your pics from the past 2 years

Hard work, Lou. And will be harder soon - the winter is here. The water level in Herastrau is lower every day and soon will have negative temperatures during the night...||

 

[Cristian Mihai]

A 2cy michahellis with asymmetrical mirrors on P10.

 

[Cristian Mihai]

And a 1cy bird.

 

[lou salomon]

goodness.. a monster! it looks like a 2cy indeed, advanced in all respects, especially mirrors! or possibly a retarded 3cy but there aren't white primary tips! i'll come back to this. quite some anomalies in it!

 

[Cristian Mihai]

BTW, in the first pic from the post #1129, in the background, could be the same bird, but I'm not 100% sure.

 

[lou salomon]

it sure is. and it shows the strange assymetric p10 very well: right wing with a round mirror and a short white tongue (which should be much smaller or absent in a 2cy YLG) and the absolut weird underside to left side p10 with a conspicous white tongue connected to an aberrant long mirror for any of these age classes (2cy shouldn't have a mirror at all so it got to be 3cy). i know this 'thayeri' pattern from adult caspians but never from a younger bird - this one is not even 4cy!

edit: i just realized that the 1cy is a weirdo too, very advanced for a 1cy - seems to have 3rd gen scapulars(??), most coverts and upper tertials are 2nd gen. and inner wing shows a strong venetian blind pattern. do you have more pics of this, cristian? i would like to see if rectrices have been renewed also.

thanks for sharing!

 

[Cristian Mihai]

Nice! It's a bird with a Caspian left wing and a Yellow-legged right wing.8-P

 

[lou salomon]

i have wondered about a hybrid, cristian, but even for caspian the p10 pattern (left wing) would aberrant for this age. going only on the wing pattern i'd say:
right wing = 2cy caspian
left wing = merely a 3cy caspian without p9 mirror but a 'thayeri' p10...

edit: did you see the white tipped right p4? visible here: http://www.birdforum.net/attachment.php?attachmentid=231718&d=1260183382
and here: http://www.birdforum.net/attachment.php?attachmentid=231714&d=1260183275

but the bird is not a caspian! it could be a cachinellis though...

 

[Cristian Mihai]

Any comments?

 

[lou salomon]

i see 3 ridi, 2 mich and 1 cach. pity that we don't see more of the cachs wings.

 

[Cristian Mihai]

i see 3 ridi, 2 mich and 1 cach. pity that we don't see more of the cachs wings.

You'll see more Lou, you'll see...

 

[lou salomon]

that's great, go ahead! location is straulesti-park, right?

 

[Cristian Mihai]

that's great, go ahead! location is straulesti-park, right?

No. I took these pics today on Dambovita. A few more with Yellow-legged Gulls here:
http://www.talk.gull-research.org/viewtopic.php?f=5&t=123

Yesterday, when I was in Straulesti, the birds were far away (and the light was very poor), so I didn't take any photos.

 

[Cristian Mihai]

1cy Yellow-legged.
Also see: http://www.birdforum.net/gallery/showphoto.php/photo/283341/ppuser/54311