10,000 Birds

JUNE 22, 2011

Many are familiar with dissecting owl pellets, but several birds will caste a pellet including hawks, eagles, gulls, herons and heck, I once witnessed a Scissor-tailed Flycatcher hack up a small one. For example, since eagles and hawks tend to rip their prey apart and have stronger digestive acids, their pellets look like wads of fur.

Dissection 197

Dissection Bats Minnesota Owls 197

10,000 Birds

OCTOBER 2, 2012

Third, Hawks in Flight was primarily illustrated by David Sibley’s excellent black-and-white drawings, supplemented with a collection of black-and-white photographs in the back of the book. Identification became more subtle, focused on subjective or transitory clues, and an element of uncertainty became acceptable.”

North America 213

North America Bald Eagle Eagles Tail Banding 213

10,000 Birds

MAY 7, 2019

Written in a friendly, inclusive style quietly grounded in science, How to Know the Birds is an excellent addition to the growing list of birding essay books by talented birder/writers like Pete Dunne and Kenn Kaufman. So many birding books talk only about birds, it’s fun to read about us for a change.

North America 114

North America Birds Prairie Dogs Barn Owls 114

10,000 Birds

MARCH 13, 2012

Delegorgue’s main ornithological contribution was collecting Delegorgue’s Pigeon in the now vanished forests of Durban, but besides this he had little significant input. Wahlberg travelled even more extensively and amassed a huge bird collection. Sundevall named Wahlberg’s Eagle and Wahlberg’s Honeyguide in his memory.

Mozambique 181

Mozambique South Africa Africa Collecting 181

10,000 Birds

DECEMBER 9, 2011

The Atlas of Birds: Diversity, Behavior, and Conservation by Mike Unwin is a collection of data about birds and their environments presented through words, graphics, and photographs. Here is a sample of a chapter, “Ratites & Tinamous”, from the Birds in Order section.

Albatross 190

Albatross Campaign Protection Birds 190

10,000 Birds

JUNE 1, 2021

The photographs are from VIREO, the ornithological image collection associated with the Academy of Natural Sciences of Drexel University, which licenses bird photographs to many guides and reference books. Bald Eagle, for example, is still said to be “formerly more widespread” though the range map shows expansion.

North America 278

North America America California Condor Birds 278

10,000 Birds

FEBRUARY 20, 2023

If you have always wondered what the minimum anesthetic concentration for isoflurane and sevoflurane for the Crested Serpent-eagle is, science has an answer. While serpent means large snake, the Crested Serpent-eagle also eats frogs, as this video shows.

China 214

China Birds Pythons Eagles 214

10,000 Birds

JULY 7, 2020

This is a delightful book, large (8-1/2 by 11 inches), filled with Sibley’s distinctive artwork and an organized potpourri of research-based stories about the science behind bird’s lives. copyright @2020 by David A llen Sibley. As Sibley tells us in the Preface, he originally intended to write a children’s book.

2020 261

2020 Birds North America Sparrows 261

10,000 Birds

AUGUST 4, 2018

Traditionally, the slow season, but the beats have mopped their collective brow and outdone their previous efforts. Black Eagle – Ictinaetus malaiensis. Blyth’s Hawk-Eagle – Nisaetus alboniger. Crested Serpent-Eagle – Spilornis cheela. Ayres’s Hawk-Eagle – Hieraaetus ayresii.

2018 100

2018 Australia Los Angeles Albatross 100

10,000 Birds

MAY 6, 2018

Redgannet added another splash of colour to the collective profile by falling asleep on a boat and waking up in Uruguay , the 44th country to feature in the list. Mark Hatfield Marine Science Center and Estuary Trail. Mark Hatfield Marine Science Center and Estuary Trail. Mark Hatfield Marine Science Center and Estuary Trail.

2018 100

2018 Australia Los Angeles Albatross 100