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A dwarf Black-headed Gull ? (Apulia, Italy)

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Old Saturday 27th January 2007, 15:03   #1
ruggiel
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Exclamation A dwarf Black-headed Gull ? (Apulia, Italy)

I dont't know if dwarf desease can exist in birds but how can you explain this (apparently) pygmy juvenile Black-headed Gull ?
The individual is in direct comparison with other Black-headed Gulls so there is no trick behind.

We feel confident to rule out Bonaparte's Gull and Little Gull but not some kinds of hybrid forms between BHG and LG (if they exist in nature).

Do you have any other explanation?

Thanks for help
Luciano

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Last edited by ruggiel : Saturday 27th January 2007 at 15:06.
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Old Saturday 27th January 2007, 15:06   #2
Frenchy
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Doesn't this thread already exist somewhere?
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Old Saturday 27th January 2007, 15:06   #3
ruggiel
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Quote:
Originally Posted by Frenchy
Doesn't this thread already exist somewhere?
In Bird Forum?
Where?

Luciano
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Old Saturday 27th January 2007, 15:12   #4
luke
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here it is: http://www.birdforum.net/showthread.php?t=76470

i thaught i'd seen it somewhere.
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Old Saturday 27th January 2007, 15:25   #5
ruggiel
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[quote=luke]here it is: http://www.birdforum.net/showthread.php?t=76470


I apologize. You can close my thread if you like.

Luc


I read Anthony's post (Hi Anthony!) and my question is : is dwarf desease commonly reported in birds? Ooops, maybe is not teh appropriate thread for this section...

Last edited by ruggiel : Saturday 27th January 2007 at 15:37.
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Old Saturday 27th January 2007, 16:25   #6
Jane Turner
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I have seen a small BHG - though not as tiny as yours.

http://www.birdforum.net/attachment....chmentid=16574

I was doing all I could to claim a Bonaparte's Gull!
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Old Saturday 27th January 2007, 17:42   #7
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I don't know how common it is.

I once seen dwarf Vervet Scoter which took me much effort to identify!
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Old Saturday 27th January 2007, 20:00   #8
colonelboris
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Coincidentally, I also saw a very small BHG at Chard Reservoir the other day. Nothin on it to suggest anything other than BHG, except that it was nearly two inches shorter in height than the bird next to it.
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Old Saturday 27th January 2007, 20:10   #9
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Sometimes you do see small BHG and on rare occasions even with black bills.
However with a spread wing and a look like this:

http://www.pbase.com/paleojack/image/73358225

the will sooner or later reveal themselfs as BHG like the one above.

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