Readers' wildlife

Here's a nice set of photos from several batches I still have from John Avise, an evolutionary biologist at UC Irvine. His notes and IDs are indented:

Here are about another dozen miscellaneous photos from my collection. This batch could be entitled "odd pairings".

Toy glider (note the upswept wingtips:

Same toy glider (note the black wingtips):

White Ibis, Eudocimus albus (note the black wingtips):

Common Raven ( Corvus corax) chasing American Crow ( Corvus brachyrhynchus); note the different sizes and silhouettes of these two species: