Incubation is an important aspect of avian life history. The behaviour is energetically costly,
and investment in incubation strategies within species, like female nest attentiveness and …

Acoustic and visual signals are well known to play important roles in social communication
in birds. Growing evidence suggests that many bird species, including species of songbirds …

Birds have specific habitat requirements during the breeding period. The Blue Tit Cyanistes
caeruleus is a species evolutionarily associated with forest areas that prefers deciduous and …

Highlights•Nest sizes of mountain chickadees were not related to environmental
temperatures.•Reproductive parameters were not associated with nest size or …

Mixed-species bird flocks are complex social systems comprising core and satellite
members. Flocking species are sensitive to habitat disturbance, but we are only beginning to …

Adaptive explanations for the evolution of extra-pair paternity (EPP) suggest that females
seek extra-pair copulations with high quality males. Still, the link between ornamentation …

The nesting phenology and productivity of hole‐nesting woodland passerines, such as tit
species (Paridae), has been the subject of many studies and played a central role in …

Habitat fragmentation and forestry practices affect forest structure and composition, and
hence, their intrinsic value for biodiversity conservation. While higher tree species diversity …

Many passerines lay protoporphyrin-pigmented eggs, and the degree of spotting seems to
be related to female condition and environmental characteristics. However, most studies …

The potential for animals to respond to changing climates has sparked interest in
intraspecific variation in avian nest structure since this may influence nest microclimate and …