{"fact":"Contrary to expectations, crows perform these 'false feedings' even when other crows are present at the nest, suggesting it's not a deceptive tactic.","context":"Crows were more likely to make empty visits when they were alone on the nest but, surprisingly, the presence of other group members at the nest (no matter whether breeders or helpers) did not prevent individuals from showing feeding reductions.","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":131}