6 "Ficheiro:Lesser_Black-backed_Gulls_with_Ring-billed_Gulls.jpg".

Ficheiro:Lesser Black-backed Gulls with Ring-billed Gulls.jpg

DescriptionLesser Black-backed Gulls with Ring-billed Gulls.jpg English: Riverlands Date 2 November 2021, 17:41:35 Source https://www.flickr...


Ficheiro:Find the Iceland Gull (kumlieni) and the Lesser Black-backed Gull.jpg

267 3461 2070 Iceland Gull 3130 430 328 365 3461 2070 Lesser Black-backed Gull 1055 291 1524 1559 3461 2070 Ring-billed Gulls English determination method:...


Ficheiro:Lesser Black-backed Gull and Ring-billed Gull.jpg

DescriptionLesser Black-backed Gull and Ring-billed Gull.jpg English: Larus delawarensis Date 20 December 2020, 14:19:16 Source https://www.flickr...


Ficheiro:Lesser Black-backed Gull with Goldeneye and Ring-billed - memory.jpg

DescriptionLesser Black-backed Gull with Goldeneye and Ring-billed - memory.jpg English: Columbia Bottom Conservation Area Date 31 December 2020, 13:45:16...


Ficheiro:Life Histories of North American Diving Birds.djvu

This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929....


Ficheiro:The Auk 1884 Volume 1 (IA auk1884amer).pdf

v Some issues for 1976-85 accompanied by supplement with title: Recent literature; for 1986- with title: Recent ornithological literature Subjects: Birds;...