https://birdalliance.in/articles/western-palearctic-gulls/
Western Palearctic Gulls - Bird Alliance
1 January, 2201 @ 12:00 am - A Facebook forum to discuss IDs of gulls and terns Image: Albin Jacob
western palearcticgullsbirdalliance
https://www.westernpalearcticbirding.com/the-wp-list/
The Western Palearctic Species List
A list of all bird species to be found in the Western Palearctic region.
the westernpalearcticspecieslist