Main content
Alien eggs
Brush cuckoos and cowbirds lay their eggs in other birds' nests - but not always successfully.
Duration:
This clip is from
Featured in...
![]()
Βι¶ΉΤΌΕΔ Nature
Be captivated, informed and inspired by the world's wildlife.
More clips from The Demands of the Egg
-
![]()
Egg laying
Duration: 02:44
-
![]()
Egg dumping
Duration: 04:00
-
![]()
Egg warmer
Duration: 01:25
-
![]()
Egg extremes
Duration: 01:38
More clips from The Life of Birds
-
![]()
Weka Territory—To Fly or Not to Fly?
Duration: 01:08
-
![]()
Feet on the ground—To Fly or Not to Fly?
Duration: 00:51
-
![]()
Thirst quencher—The Limits of Endurance
Duration: 03:10
-
![]()
Food on the run—Meat-Eaters
Duration: 02:12
