Ring-billed gull adoption: what arms race?

Ring-billed Gull (Larus delawarensis) Science Article 5

abstract

In his study of adoption of young by ring-billed gulls, Larus delawarensis, Brown (1998) concludes that adoption results from failure of parents to discriminate their own offspring from vagrant chicks.

ANTHONY J. F. HOLLEY, ANIMAL BEHAVIOUR, 2000, 60, F15-F16

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