Main content
Fecal Sacs
How and why do young perching birds produce their waste in bags?
Duration:
This clip is from
More clips from Episode 7
-
![]()
The hanging garden
Duration: 00:29
-
![]()
Striking herons
Duration: 03:53
-
![]()
Tip top plumes
Duration: 00:34
-
![]()
The buck in the night
Duration: 01:11
More clips from Springwatch
-
![]()
Take a trip down Springwatch Street
Duration: 01:54
