10,000 Birds

APRIL 5, 2022

Vagrancy in Birds is organized into two major parts: (1) A detailed, 62-page synthesis of research and theory and (2) “Family Accounts,” 259 pages covering bird families from Struthionidae/Ostriches) to Thraupidae/Tanagers and allies (Clements is the taxonomic authority). Copyright © 2022 Alexander Lees and James Gilroy.

Birds 263

Birds Compassion Eagles Science 263

10,000 Birds

JUNE 23, 2022

It seems that this is another species for which the standard phrase of scientists anywhere, “more research needed”, applies. A worrying trend. The Latin name “frontalis” (meaning, as you can guess, something like “frontal”) referring to the distinct black forehead makes more sense.

Birds 147

Birds Myanmar China Chicago 147

10,000 Birds

APRIL 2, 2013

For birders, it’s the extremely large book, shelved in a place where it can’t crush the field guides, used to research the history of a bird in their area. A breeding bird atlas is a special kind of book. Corey did just this in this 2011 posting about Vesper Sparrow Pooecetes gramineus in New York State.

Pennsylvania 239

Pennsylvania Breeding Birds Sparrows 239