{"fact":"Mother crows are more likely to engage in 'false feeding,' a behavior where they withhold food from chicks, potentially due to the high energy demands of motherhood.","context":"Breeding females are likely to suffer the highest costs of reproduction in this crow population...The fact that breeding females in this population undergo higher mortality than breeding males after the breeding season (Baglione, unpublished data) is likely to be a consequence of the costs of reproduction.","source":"Daniela Canestrari; Jos'e M. Marcos; Vittorio Baglione, False feedings at the nests of carrion crows Corvus corone corone, 10.1007/s00265-003-0719-8","index":130}