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gulls (1 Viewer)

lou salomon

the birdonist
howard, do you have some barabensis "faces" - where bill can be studied etc.? i'd like to know more about variation in steppe gull.
 
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lou salomon

the birdonist
herastrau again

from a thread by cr.mihai (the author of pics).

seen like through bins. high number of pure guessing o:D

ok the first 7 for my eyes:
1. mich ad fem
2. mich 1st
3. cach ad?
4. classic cach 1st but with well marked scaps
5. short legs and hanging bum? could be everything, hg, ylg, but prob.casp.?
6. ? darkish tertials with wide crescents - a 3cy?
7. 2nd cycle michahellis (on head)

who wants to go on? there are some striking birds in there.
 

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AStevenson

Well-known member
Gentoos in 278, 1.Ad Calif, 2. juv/1st cycle Glauc winged or poss some western in there, 3&4 1st cycle Calif, 5. Hmmmm, prob hiybrid but maybe pure western?

As for 282 - run away now!!!!

Cheers
Andrew
 

Gentoo

Guest
Well my post was easy. No need to even post the whole pics on those. For the record though, that was an advanced first winter Western Gull, born and raised not far from where that picture was taken in the summer of 2007.
 

lou salomon

the birdonist
8. cach 2nd
9. ?
10. cach
11. ?; are these 2 ind? preening, anything visible in the wingtip?
12. prob. cach
13. mich 2nd (definitely!)
14. prob. mich
15. cach
16. mich 1st
17. a cachellis with a canus-head :eat:
18. male mich 1st, outstanding in its dark and but used plumage
19. poss. cach 1st
20. mich? 1st
21. mich ad
22. poss. cach?
23. mich ad
24. cach! 1st
25. mich 1st
26. mich? - this one has a mantle shade matching canus (heinei), even a light coloured graellsii - or a dark mich
27. mich 3rd?, lets say this is an armenicus ;) as no. 1 would be barabensis :-O
 

Cristian Mihai

Cristian Mihai
from a thread by cr.mihai (the author of pics).

seen like through bins. high number of pure guessing o:D

ok the first 7 for my eyes:
1. mich ad fem
2. mich 1st
3. cach ad?
4. classic cach 1st but with well marked scaps
5. short legs and hanging bum? could be everything, hg, ylg, but prob.casp.?
6. ? darkish tertials with wide crescents - a 3cy?
7. 2nd cycle michahellis (on head)

who wants to go on? there are some striking birds in there.

Lou, I would say that 3. it is a Common Gull.
 

lou salomon

the birdonist
it looks too long-legged fo CG - see the one on the right of nr.5, which of course is a canus. see the hunched caspian 24 which isn't bigger but has almost the same posture. it seems there was quite some wind?

it may look like consuming attitude to go over so many ind. in a so undifferenciated way, but it is an exercise also and that's why i posted my suggested answers in advance. now if you like to compare and disagree..- most of them are not id-able with certainty but ~25% of them are.

my suggestions for the 32 marked ind. in pic 2, totally there are more than 70 gulls in the pic, the majority are caspians, bold marked some ind. that are worth having a closer look (or at least to have a look at ;)

1. cach 2cy
2. mich? 2cy
3. cach? 4cy? - are there tail markings?
4. cach? (bicoloured gr. covert pattern)
5. mich? although not much visible it seems to be very dark, possibly 3cy due to wide tertial crescents
6. mich? 3cy
7. cach? 2cy
8. mich? ad
9. cach ad very small, fem type
10. cach ad mantle looks lighter than 9
11. cach 3cy - looks "high heeled", stiltish
12. mich? 2cy there's this strange red-brown surface at the wingbend, what is that?
13. cach 3cy (open wing). that light point in the outer wing looks perfect for a p10-mirror on setting. it is 2nd winter because of that mirror and the much paler inner primary window (extending on both webs), although in the whole wing there aren't any ad type grey feathers. also there are long pale tongues on inner webs in the dark outer primaries - which michahellis doesn't have so extended.
14. cach 2cy but could be mich (most 1st cycle michs have rather worn and thus plain greater coverts now)
15. cach 2cy(?) large and leggy, greyish scaps but tertials look 1st gen.
16. (twice) the ad one is square headed but could be both cach or mich
16. mich? 2cy dark head, well marked scaps
17. cach 2cy, look at those stilts. whole row of median coverts looks renewed.
18. cach 3cy
19. mich 2cy - this is the conspicous very dark ind. discussed in pic1!
20. cach? 2cy looks like casp but could well be a mich with pale underwing! threatening pose better for michahellis?
20. cach ad - twice again, this one is very strange, it has a really fat hanging bum but more in the middle (between legs), triangular head, all good for caspian but also it looks short winged!
21. cach? ad?
22.-24. nothing to see well
25., 26. and 27. look like adult michahellis (yellow legs, dark mantle); 27. is the dark mantled bird discussed in pic 1, darker than the rest of the ad gulls.
28. also prob. ad michahellis
29. cach/mich ad (prob. cach)
30. cach/mich 3cy?
31. leaning against the wind.., looks like mich
32. mich? 2cy

and the pic again for control. taken 8th febr. 08 in herastrau park, bucharest (cr. mihai)
 

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Lou I found it hard to concentrate on the picture - eyes are fading -- old age thats my excuse - anyhow can't post any current pics at the moment my lens is jammed got some of our dust (sand) inside - will sort through some of the older pictures I have in the meantime while its in the workshop.
 

lou salomon

the birdonist
differences in 3cy yellow-legged and pontic

see these pics from cristian for comparison and notice the differences in grey tongues, distribution of paleness in inner primaries and of course the mirror on p10 in cachinnans.
 

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Gentoo

Guest
Here's a few assorted items
 

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lou salomon

the birdonist
obviously for no 5 there aren't any other options left.
#2 i thought had too dark primary tips to be a pure GWG, maybe a "nelson's"?
#1 GWG then. does smith have such pink legs?
 

Gentoo

Guest
obviously for no 5 there aren't any other options left.
#2 i thought had too dark primary tips to be a pure GWG, maybe a "nelson's"?
#1 GWG then. does smith have such pink legs?
Good guesses:
No, smiths are like argentatus and argeteus in leg color. This GWG, has always had brighter pink legs than most I've seen. I think this may indicate Siberian origin and this bird, although usually silent, and a long call that fits Sibley's description. I just thought it would be interesting seeing what you all thought.

The 1st winter GWG is a pure bird.

The Western is wymani.
 

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lou salomon

the birdonist
http://www.suesbirdphotos.co.uk/HERRINGGULL.htm (2nd pic)

this 3rd winter type argenteus(?) herring gull has p5-7 with large white tips and p8-10 without: does that mean that the outer 3 primaries are 2nd generation and the rest 3rd? what kind of moult schedule does this represent??? edit: it's just my lack of experience - surely they are all 2nd generation and inner primaries are as in other large gulls already white tipped while the outer aren't. :eat:

concerning michahellis: http://www.tarsiger.com/images/seimola/2DSC_8108Larmic.jpg
jan has posted this as having an unusually thin subterrminal band on p5, same goes with this bird, pic from cristian (14.2.08). are those grey stripes inside the black tips of p9 and 10 just shaft streaks? and is the inner web of p10 not supposed to be all black or at least more of it? could there be some cachi influence?
 

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JANJ

Well-known member
Helo Lou.

I would say that Sue,s Herring Gull has renewed all it´s primaries and the pattern on the inner tips contra outers is age related like in these ones here:

http://www.gull-research.org/ylgadsubad/3cyoct/micha6699.htm

http://www.gull-research.org/ylgadsubad/3cyoct/micha5389.htm

Another possibility is that inner primaries are more protected when wings are folded compared tro the outers - which because of there position therefore are more prone to wear.
On Sue´s Herring - where all primaries would be recently moulted the wear explanation is of less importance.
You are right about the grey shafts on the YLG but I can´t say for sure if this is a sign of influence of another gull.
A gap there on Cristians bird between p-coverts and inner web of p10, yes but I can not say if it´s some kind of influence of - either Caspian or any other species.

http://www.ornitho.ch/index.php?m_id=54&mid=28479

http://www.birdpix.nl/album_page.php?pic_id=103184

http://www.birdpix.nl/album_page.php?pic_id=76395

http://www.iesmeulmeester.nl/fotos.php?actie=foto&cat=1&subcat=1&subcatsub=222

http://www.iesmeulmeester.nl/fotos.php?actie=foto&cat=1&subcat=1&subcatsub=111


Check these?

http://www.helsinki.fi/~rauste/gulls/greece05.html

http://www.helsinki.fi/~rauste/gulls/greece04.html

JanJ

JanJ
 

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