thalassarche:Common Raven (Corvus corax) – photo by Łukasz…

Thursday, October 5th, 2017

thalassarche:

Common Raven (Corvus corax) – photo by

Łukasz Gwiździel

Reposted from http://ift.tt/2y1YDJt.

Tags: birds, cora, fun fact: I recently taught a group of beginning birdwatchers, how to distinguish between crows and ravens, this angle mostly obscures several important difference, but a key one remains visible: the raven's longer wing, if you look carefully you can also see, the raven's more-tapered wingtip, visible here from the big length difference, between the P9 and P10 primaries, ravens: always worth studying. Posted in Tumblr by jbc | Permalink | No Comments »