ruggiel
Luciano Ruggieri
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
Other pictures here:
http://www.ebnitalia.it/gallery/gabbiano_comna.htm
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
Other pictures here:
http://www.ebnitalia.it/gallery/gabbiano_comna.htm
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