Habitat loss and fragmentation are listed among the most significant effects of urbanization,
which is regarded as an important threat to wildlife. Owls are the top predators in most …

Vocal territory defense can vary within a species due to many factors such as sex and
breeding status, influencing territory size and thus population density across a landscape …

Aim Our specific objectives were to (a) estimate detection probabilities of nocturnal bird
species, after taking into account survey‐specific covariates, and (b) investigate the …

Current knowledge regarding the vocal behavior in tropical non-passerines is very limited.
Here, we employed passive acoustic monitoring to study the vocal activity of the white-tipped …

Bird vocal activity is affected by endogenous and exogenous factors. Owl surveys are mainly
based on the detection of nocturnal calls, and therefore, the impact of exogenous factors on …

Simple Summary Alteration of natural habitats due to urbanization is an increasing concern
worldwide. Some species, including owls, can exploit this novel environment, although the …

Climatic conditions represent one of the main constraints that influence avian calling
behavior. Here, we monitored the daily calling activity of the Undulated Tinamou …

Highlights•Doppler shift compensation is more precise at higher temperatures and
humidity.•It may be affected by call frequency and body temperature changes.•Call …

Although the associations between climate, food conditions and reproduction in the wild has
been the focus of numerous studies in recent years, we still know little about population level …

Over a two-year period (2013–2015), we trapped and radio-tracked 20 Tawny Owls at two
study sites in northern Spain. We obtained 4257 radio-tracking locations, 328 of which were …