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A Strategic Arms Race Among Birds

10,000 Birds

In the former, a female lays her fertilized egg in the nest of another species, in the hopes that her offspring will be raised by the unwitting hosts. ii) cooperative breeders may be more obvious targets as a result of the increased activity of helpers near the nest.

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Birding Sepilok, Borneo (Part 1)

10,000 Birds

If the male’s color fades after the first egg, the female reacts by laying a smaller second egg – seemingly deciding that it is better to cut her losses as the male apparently is the avian equivalent of a deadbeat father. At Sepilok, it can be hard to avoid taking photos of some non-birds, such as primates.