Resumen de Presencia de gastrolitos y cáscaras de huevo en egagrópilas de Lechuza común (Tyto alba)

Ignacio Torre, José Luis Tella Escobedo, Tomás Ballesteros

• The analysis of 787 Barn Owl pellets showed a 0.5 % presence of gizzard stones and 0.12 % of eggshell rernains of the sarne species. Both elements have rarely been reported in the literoture. Their low frequency of appearance suggests accidental swallowing.