Видео ютуба по тегу Cliffswallows

How Bison Are Helping Cliff Swallows Build Their Nests
How Bison Are Helping Cliff Swallows Build Their Nests
Cliff Swallow Nests
Cliff Swallow Nests
Cliff Swallows Building Nests, Mating, and Facing Home Invaders [NARRATED]
Cliff Swallows Building Nests, Mating, and Facing Home Invaders [NARRATED]
cliffswallows
cliffswallows
The Social Life of Cliff Swallows: Insights from a 45-year Field Study with Dr. Charles Brown
The Social Life of Cliff Swallows: Insights from a 45-year Field Study with Dr. Charles Brown
CliffSwallows
CliffSwallows
CLIFF SWALLOWS, identification vs Barn Swallows, babies, nests and more Petrochelidon pyrrhonota
CLIFF SWALLOWS, identification vs Barn Swallows, babies, nests and more Petrochelidon pyrrhonota
Cliff Swallows: Their Ecology and Behavior
Cliff Swallows: Their Ecology and Behavior