The Collared Finchbill
10,000 Birds
JULY 24, 2023
Fortunately for them (though less so for the cuckoo), in one experiment they ejected 100% of all cuckoo model eggs. A relative of them, the Brown-breasted Bulbul, relies on a different strategy to avoid being cuckolded – placing their nests away from forests (where the cuckoo lives), and aggressively attacking cuckoos.
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