Evidence of carrion consumption behaviour in the long-eared owl Asio otus (Linnaeus, 1758) (Aves: Strigiformes: Strigidae)

摘要: AbstractEvidence of necrophagous behaviour has been reported for 8.43% nocturnal raptors. To determine whether preys were captured alive or consumed as carrion is challenging, the diet Strigiformes mainly studied through pellet analysis, rather than direct observation. The long-eared owl Asio otus widely all over distribution range this species, but proven evidence feeding habit still lacking. We collected 106 pellets under a suburban dormitory in Southern Tuscany (Central Italy) between December 2012 and April 2013. Prey remains (skulls, mandibles) compared with specific atlas. Four fragments crested porcupine (Hystrix cristata) quills jawbone Martes sp. found after snowfall (20–40 cm depth). Although voles mice constituted staple accordingly previous studies, these findings represent first proof consumption by owl. Body sizes...