gulls (1 Viewer)

T

tittletattler

Well-known member

• Dec 5, 2011

• #2,081

lou salomon said:

i have no idea. but sure is hybrids can look very close to one parent part, so graellsii like mantles with pinkish legs could well be hybrids. and they should not be that rare considering the large populations of both sp. in great britain.
e.g. some cach x argentatus look absolutely like pure cachs.
i had my doubts about adult LBBG with flesh coloured or even pinkish legs since i think in michahellis this is a consistent feature of adult birds (no or very very rare flesh coloured legs in adults). ruud confirmed my suspicion in saying he (or "they" are considering such birds as hybrids).

cheers

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Thanks Lou.

I digiscoped two more pink legged birds yesterday (there were 88 LBBGs present, so 1 in 44..). It does seem that the darker (intermedius?) birds are more likely to have pink(ish) legs and not the graellsii but I need to look at more birds to satisfy myself that this assumption is correct. I also found a yellow-legged Herring too.

The hybrid from a couple of weeks back can be viewed here:

http://www.kentos.org.uk/gallery/main.php

This bird does seem to fit Ruud's assumption, on the other hand.

Cheers, Andy.

 

T

tittletattler

Well-known member

• Dec 5, 2011

• #2,082

This is interesting:

http://www.ntgg.org.uk/cgi-bin/content.cgi?p=sightingr&i=LBBGU063

http://www.ntgg.org.uk/recoveries.shtml

http://www.ntgg.org.uk/controls.shtml

How should this be interpreted? Are the wintering birds in SE England (and elsewhere in Britain) intermedius? Are the Iberian birds Graellsii?

Note the sub-adult bird's leg colour in the above link.

Cheers, Andy.

 

Cristian Mihai

Cristian Mihai

• Dec 5, 2011

• #2,083

Dambovita river, December 4th 2011.

 

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T

tittletattler

Well-known member

• Dec 5, 2011

• #2,084

Cristian Mihai said:

Dambovita river, December 4th 2011.

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Superb shots.

A short legged, shortish billed Caspian?

Cheers, Andy.

 

Cristian Mihai

Cristian Mihai

• Dec 6, 2011

• #2,085

I also have a "Caspian feeling" about this bird, Andy...

 

lou salomon

the birdonist

• Dec 6, 2011

• #2,086

sure a nice male type 1cy caspian on aple bill bill base, not too short bill for caspian and with pointed tip, white head with dark shawl, pale underwing - esp. "armpits" (axilliaries), stronger window than mich (pale inner webs to primaries), diffuse GC pattern and not tapering subterminal tailband. great shots, cris!

 

T

tittletattler

Well-known member

• Dec 6, 2011

• #2,087

lou salomon said:

sure a nice male type 1cy caspian on aple bill bill base, not too short bill for caspian and with pointed tip, white head with dark shawl, pale underwing - esp. "armpits" (axilliaries), stronger window than mich (pale inner webs to primaries), diffuse GC pattern and not tapering subterminal tailband. great shots, cris!

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Indeed; everything else 'is there'. They are lovely shots.

 

Cristian Mihai

Cristian Mihai

• Dec 6, 2011

• #2,088

Hi Lou, Andy,

I also have a few shot with an adult Caspian, a 2cy Yellow-legged, and an adult Common Gull. I will try to upload some of them this evening.

 

ody

Well-known member

• Dec 6, 2011

• #2,089

Hi,everyone!
What is this gull among the Pymgy cormorants?

 

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Cristian Mihai

Cristian Mihai

• Dec 6, 2011

• #2,090

Looks good for a 2cy Yellow-legged Gull.

 

Cristian Mihai

Cristian Mihai

• Dec 6, 2011

• #2,091

Dambovita river, December 4th 2011.

 

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Last edited: Dec 6, 2011

lou salomon

the birdonist

• Dec 6, 2011

• #2,092

did you notice the small p8 mirror in the adult common gull - a phenomenon seen most likely in this species.

 

Cristian Mihai

Cristian Mihai

• Dec 6, 2011

• #2,093

Lou, what do you think about the age for bird from pic 4? 3cy?

 

lou salomon

the birdonist

• Dec 6, 2011

• #2,094

yes indeed, a 3cy (3rd cycle) mich.

 

T

tittletattler

Well-known member

• Dec 10, 2011

• #2,095

Hi all,

this sub-ad was digiscoped today. It was the palest bird present and also a little bulkier than the other Lesser Black-backeds present. Note the leg colour in comparison to the (one, token, present) Yellow-legged Gull behind it.

Cheers, Andy.

 

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Cristian Mihai

Cristian Mihai

• Dec 10, 2011

• #2,096

Do you think this is a hybrid LBBG x Herring Gull, Andy?

 

T

tittletattler

Well-known member

• Dec 10, 2011

• #2,097

Cristian Mihai said:

Do you think this is a hybrid LBBG x Herring Gull, Andy?

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Hi Cristian - I don't think so. I think it's a sub-ad LBBG. I think it demonstrates the variability that's found in this species. However, note that the bird would appear pale (bleached) in today's strong sunlight and sub-ads are often paler anyway. Also, it is probably a Graellsii.

An adult Kittiwake was also present which was a surprise.

Cheers,

Andy.

 

lou salomon

the birdonist

• Dec 10, 2011

• #2,098

i got to agree with cristian's suspicion. to me quite a 'clearcut' hybrid if such exists:

- bill shape (looks like an ordinary herring gull bill)
- looks large headed too
- pale mantle (would be at the pale end of graellsii, like in iceland birds)
- pinkish cast to legs
- bulky body as you noted
- last but not least: very wide tertial crescent - a feature mentioned by peter adriaens in his surfbirds article on hybrids.

cheers

 

A

Armin Kreusel

Well-known member

• Dec 10, 2011

• #2,099

What do you think about this Gull?
Photographed today by a friend of me on the german baltic coast.

 

Last edited: Dec 11, 2011

lou salomon

the birdonist

• Dec 10, 2011

• #2,100

HELP: november cachinnans pics needed

andy, steve, cristian and all others who take good pics:

i'd need good pics of caspian gulls for ID pages (comparisons) on ORG.
what's in your stock?

i would need the RAWs (or at least good and sharp originals, jpg) to crop and fit text into them myself.

for the moment a comparison of november birds is planned, of all ages (1cy to adult), pics of each a standing and a flying bird. AND: it got to be a very typical one (this is not so easy...).

so: who wants to have his name on a gull-research-org comparison ID page?

cheers to ya all B B B