Long-Eared Owl

Snowy Owl Predation on Short-eared Owls

A problem confronting Snowy Owls (Nyctea scandiaca) in their southern incursions is the shortage of food. This difficulty is raised by the presence of other raptors that feed on small mammals. This note shows how little food is found by migrant Snowy Owls and indicates a complex temporary ecological solution. At Tatoosh Island, Washington (48”24’ N, 124” 44’ W) on 25 November 1973, we observed ...

The Sensibility of the Nocturnal Long-eared Owl in the Spectrum

Infrared radiation (750-1500 mmicro) produces no iris contraction in the typically nocturnal long-eared owl even when the energy content is millions of times greater than that of green light which easily elicits a pupil change. The energies in different parts of the visible spectrum required for a minimal iris response yield a spectral visibility curve for the owl which is the same as the human...

Status of the Short-eared Owl (Asio flammeus) in Alberta

Somatic Chromosomes of Long-Eared Desert Hedgehog Hemiechinus auritus

Tongue structure in the long-eared hedgehog (Hemiechinus auritus): A scanning electron microscopic study

The aim of this study was to investigate the dorsal surface of the long-eared hedgehog tongue using scanning electron microscopy. The tongue of the long-eared hedgehog is rectangular-shaped with an elongated body and a widened root and a marked deep median groove can be seen on its dorsal surface. A characteristic feature of the lingual root is presence of two huge laterally situated folds. The...