10,000 Birds

JUNE 1, 2021

If you remember that the first edition of Sibley was published with “National Audubon Society” on the cover, raise your hand. It does seem like the order is concurrent with the 61st Supplement, which came out in 2020, but Northwestern Crow is included as a full species. I didn’t.).

North America 279

North America America Birds California Condor 279

10,000 Birds

MARCH 3, 2020

The source of this ranking, BirdLife International, lists Bolivia as currently having 1,439 bird species, including 18 breeding endemics. Like most maps, colors are used to indicate seasonal status (breeding resident, Austral migrant/visitor, Boreal migrant, etc.). Distribution maps are also different from other field guides.

Bolivia 174

Bolivia Birds Brazil Switzerland 174

10,000 Birds

JULY 7, 2020

copyright @2020 by David A llen Sibley. copyright @2020 by David A llen Sibley. So, curious about which birds nest in two places, I quickly found out that it’s Phainopepla, a western bird, a relief because I was concerned that it might have implications for my data collection for the NYS Breeding Bird Atlas.

2020 264

2020 Birds Groups North America 264

10,000 Birds

JULY 4, 2023

The species are taxonomically divided into two families: Tytonidae, Barn-Owls, and Strigidae, Owls, encompassed in one order, Strigiformes. The chapters on courtship and breeding and roosting and migration are the longest, which isn’t surprising. Jennifer Ackerman is one of my favorite bird authors. This is a great summer read.

Owls 213

Owls Science Barn Owls Penguins 213

10,000 Birds

JUNE 1, 2022

And I found this one because he was singing his heart out quite persistently, which certainly suggests a bird that wants to settle down and raise a family. So yes, this appears to be a breeding population.]. Most Marbled Godwits breed in inland North America, and winter along the tropical coasts of Mexico and the Caribbean.

Mexico 222

Mexico 2018 Ducks Breeding 222