What's the difference?: turkey vulture vs. black vulture

We only usually have one vulture species in town, but in places where their ranges overlap, turkey vultures and black vultures can be difficult to distinguish from one another.

Similar Species to Black Vulture, All About Birds, Cornell Lab of Ornithology

Turkey Vulture vs Black Vulture - Raptor Identification (Birding)

And Now for Something a Little Different XVI – Turkey Vulture – Field Station

Birds of SGG - Black Vulture - Smith-Gilbert Gardens

Vulture Identification: Turkey Vulture vs Black Vulture

The 2 Types of Vultures Found In Alabama! – Nature Blog Network

Black Vulture Outdoor Alabama

An Ecological tale of two scavengers - SREL

Black vulture