Why Do North American Vultures Have Either Red Or Black Heads?

A common question posed to ornithology professors, birders and birding guides that has a surprisingly complicated answer

White-headed Vulture

Turkey vulture - Wikipedia

The 3 Types of Vultures Found In The United States! (2024) - Bird Watching HQ

Black vultures are killing newborn livestock in the Midwest

It's a bird! It's a plane! or what - Zion National Park

Adrian Naveda-Rodriguez on LinkedIn: Avian Pox in New World Vultures: An Unnoticeable or Overlooked Infectious…

Turkey Vulture Overview, All About Birds, Cornell Lab of Ornithology

How to Identify Turkey Vultures - Rebecca Lexa, Naturalist

Have you thanked a vulture, today?

Ecological services, courtesy of your local vultures - The Boston Globe

Vultures are not harbingers of death, but partners in cleaning up the environment, Home and Garden