Photoperiodism is the ability of organisms to assess and use the day length as an
anticipatory cue to time seasonal events in their life histories. Photoperiodism is especially …

Phenology refers to the periodic appearance of life-cycle events and currently receives
abundant attention as the effects of global change on phenology are so apparent …

Migration, broadly defined as directional movement to take advantage of spatially distributed
resources, is a dramatic behaviour and an important component of many life histories that …

The first comprehensive review of all aspects of the biology of moult, drawing information
from across the literature and in all birds, from penguins to passerines. Feathers are …

Road-kill is the most recognized impact of traffic and an important threat for biodiversity.
Nevertheless, most research on this topic deals with particular species or with road features …

Seasonal migration is a taxonomically widespread behaviour that integrates across many
traits. The European blackcap exhibits enormous variation in migration and is renowned for …

Migratory animals show a suite of adaptations to cope with their journeys. These include not
only morphological features for efficient locomotion and storage of energy but also …

In many birds, reproduction, molt, migration and other seasonal activities are controlled by
endogenous circannual rhythmicity. Under constant conditions, this rhythm persists for many …

Twice a year, normally diurnal songbirds engage in long-distance nocturnal migrations
between their wintering and breeding grounds. If and how songbirds sleep during these …

Ornithologists, and especially northern hemisphere ornithologists, have traditionally thought
of migration as an annual return movement of populations between regular breeding and …