Nature in the City – London’s Amazing Chimney Swifts – Winnie Wake

Chimney Swifts are most visible when large flocks make spectacular dives into chimneys at dusk. Swifts fly fast and high, dine on insects, and build tiny nests in old brick chimneys. Learn details of their fascinating life story, Nature London’s 20-year swift program, and why these charismatic little birds are in trouble.