Pigeon, Bird of Prey, Flight & Migration Patterns

Migrating birds hit hard by California's drought - CalMatters

The Naturalist in Migration Land - Down East Magazine Magazine

Birds - Lake Clark National Park & Preserve (U.S. National Park Service)

Rock Pigeon Audubon Field Guide

Jerry Walls: Migration of the peregrine falcon

Frontiers Identifying global research and conservation priorities for Columbidae: a quantitative approach using random forest models

Climate change and the migration of peregrine falcons

Pigeon, Bird of Prey, Flight & Migration Patterns

Migratory birds under threat

White pigeon in group of pigeons hi-res stock photography and images - Page 2 - Alamy

The Pigeon Hawk – Wildlife In Nature

Evidence that birds sleep in mid-flight

Why do city pigeons gather on rooftops and then fly in a group in a circle, and land on the same roof? - Quora