A Million Tree Swallows Prepare For Connecticut's Annual 'Avian Ballet' - WSHU

WSHU
A Million Tree Swallows Prepare For Connecticut's Annual 'Avian Ballet'
WSHU
From late August to early October, as many as a million tree swallows gather on a small island near the mouth of the Connecticut River. Every evening at sunset they perform an “avian ballet” that has been called one of the “most astounding natural ...