Intraguild predation, the killing of species that use similar resources, has been largely
overlooked in raptor investigations. To help fill this gap in knowledge, we conducted a …

Widespread in North American forest regions including the Rocky Mountains, the Boreal Owl
(Aegolius funereus) was once the most numerous predatory bird in Eurasian boreal forests …

Predatory interactions among top predators, like superpredation or intraguild predation
(IGP), can influence community structure. Diurnal raptors occupy high trophic levels in …

Despite its recognition as an important source of variation in recruitment probability, the
ecological processes leading to mortality between fledging and independence are poorly …

In mixed-species foraging flocks of forest birds, one or a few nuclear species frequently
produce alarm calls and are followed by other species in the flock. We tested the hypothesis …

The spatial dispersion and social interactions were studied in 11 neighbouring pairs of radio-
tagged tawny owls Strix aluco in a deciduous wood in Denmark from 1998–2001. The …

Natural cavities are a critical resource for non-excavating hole-nesting birds, many of which
are declining in northern Europe. In the heavily managed boreal forests in Finland, cavities …

Highlights•We experimentally manipulate perceived predation risk from two opposing
sources.•We examine changes in wild great tits' nocturnal sleep and vigilance …

At present, urban areas cover almost 3% of the Earth's land surface, and this proportion is
constantly increasing along with human population growth. Although urbanization leads to …

How animals choose habitats during periods of inactivity, such as roosting or resting, is an
often overlooked aspect of habitat preference that can differ significantly from how habitats …