Pellets produced and accumulated by owls are subject to biological and atmospherical agents, and may be dispersed before their disaggregation. Observations on dispersion of Athene cunicularia and Tyto alba(Aves, Strigiformes) ...

The presence of microvertebrates in archaeological sites can be attributed to a variety of causes, including natural ones, such as the regurgitation of microvertebrates consumed by various predators. Determining the origin ...

Some ecologists have been skeptics about the use of owl pellets to estimate small mammal's fauna. This is due to the assumptions required by this method: (a) that owls hunt at random, and (b) that pellets represent a random ...

Owl pellets, regurgitates formed by the undigested parts of owls? prey, have been used since the sixties to estimate relative species abundances and community diversity of small mammals in the field. Although insects are ...

A variety of factors influence prey selection by predators. Because Barn Owls (Tyto alba) and Burrowing Owls (Athene cunicularia) differ in size and foraging tactics, we expected differential predation on small mammal prey. ...

La investigación se llevó a cabo en 6 áreas del SNASPE: Norte (Parque Nacional Fray Jorge y Reserva Nacional Las Chinchillas), Centro (Reserva Nacional Lago Peñuelas y Parque Nacional Río Clarillo) y Sur (Parques Nacionales ...

Burrowing Owls (Athene cunicularia) are known to include snakes and other reptiles in their diet (König et al. 1999. Owls: A Guide to the Owls of the World. Yale Univ. Press, New Haven, Connecticut. 462 pp.). On 25 October ...