[PDF][PDF] Sixty-first Supplement to the American Ornithological Society's Check-list of North American Birds
(American Ornithologists' Union [AOU] 1998). It summarizes decisions made between April
15, 2019 and April 15, 2020 by the American Ornithological Society's (formerly American …
15, 2019 and April 15, 2020 by the American Ornithological Society's (formerly American …
[PDF][PDF] Measurement of relative bill length of Black-tailed Godwits from photographs
J Bisschop - Dutch Birding, 2021 - researchgate.net
Measurements of wing or bill length are helpful in the identification of certain (rare) bird
species or subspecies with inconclusive plumage features. Trapping (rare) birds for …
species or subspecies with inconclusive plumage features. Trapping (rare) birds for …
[PDF][PDF] Bill and skull metrics of American Thalasseus maximus and West African T. albididorsalis “Royal” Terns amend previously reported size differences and explain …
CR Barlow, J Waine, J White, JM Collinson… - MALIMBUS, 2022 - researchgate.net
Despite the morphological similarity of the American Thalasseus maximus and West African
T. albididorsalis “Royal” Terns, the latter has recently been shown to be more closely related …
T. albididorsalis “Royal” Terns, the latter has recently been shown to be more closely related …