The eyes of vertebrates show adaptations to the visual environments in which they evolve.
For example, eye shape is associated with activity pattern, while retinal topography is …

Most diurnal birds have cone-dominated retinae and tetrachromatic colour vision based on
ultra-violet/violet-sensitive UV/V cones expressing short wavelength-sensitive opsin 1 …

Nomadic species can rely on unpredictable resources making them challenging to
understand and, consequently, to conserve. Here, we present knowledge advancement for a …

Abstract The Short-eared Owl (Asio flammeus) inhabits open grasslands and belongs to the
ground-breeding birds that have experienced the most severe declines during recent …

Agricultural intensification and abandonment have led to a dramatic decrease of semi-
natural grasslands such as low-intensity pastures and hay meadows. The Short-eared owl …

ABSTRACT The Short-eared Owl (Asio flammeus) is a species of conservation concern in
the western USA, with evidence for declining population sizes. Monitoring of Short-eared …

Abstract The North American Breeding Bird Survey, Christmas Bird Count, and regional and
national conservation assessments provide convincing evidence that the short‐eared owl …

Hen Harrier Circus cyaneus and Short-eared Owl Asio flammeus are open-country birds of
prey with overlapping distributions. Although both species face similar conservation threats …

Abstract Analysis of ring recovery data for Short-eared Owls Asio flammeus spanning 96
years, 1912–2007, identified spatial and temporal differences in migration patterns. Birds …

The Short-eared Owl (Asio flammeus) is an open-country species breeding in the northern
United States and Canada, and has likely experienced a long-term, range-wide, and …