Видео ютуба по тегу tree swallows

Swallows: 21st Century’s Canaries in Coal Mine Case study of Tree Swallows in Central AB 25.04.23

Swallows: 21st Century’s Canaries in Coal Mine Case study of Tree Swallows in Central AB 25.04.23
The Evolution of the Tree Swallow

The Evolution of the Tree Swallow
Iowa oak tree swallows plow dating back to Civil War

Iowa oak tree swallows plow dating back to Civil War
The birds...we got swarmed by Tree Swallows while camping at Okaloacoochee Slough.

The birds...we got swarmed by Tree Swallows while camping at Okaloacoochee Slough.
CAPE MAY TREE SWALLOWS

CAPE MAY TREE SWALLOWS
HUGE FLOCK OF MIGRATING TREE SWALLOWS

HUGE FLOCK OF MIGRATING TREE SWALLOWS