ABSTRACT A growing body of work suggests that breeding birds have a significant capacity
to assess and respond, over ecological time, to changes in the risk of predation to both …

Morphometric estimates of body condition are widely used by ornithologists, but which
estimates work best is a matter of debate. We review morphometric approaches (body mass …

Detailed empirical models predicting both species occurrence and fitness across a
landscape are necessary to understand processes related to population persistence. Failure …

Incubating new ideas about avian reproduction/SJ Reynolds & DC Deeming--The fossil
record and evolution of avian egg nesting and incubation/DC Deeming--Nest construction …

Agricultural intensification is accepted widely as a cause of bird population declines on
farmland in Europe and North America. Although intensification is multivariate, one common …

Humans, being visually oriented, are well versed in camouflage and how animals hide from
predators that use vision to locate prey. However, many predators do not hunt by sight; they …

Birds selecting a nest site have to find the best compromise between the risk of encountering
predation, the availability of food near to the nest and microclimatic requirements. As the …

The effects of harvest on the annual and seasonal survival of willow ptarmigan Lagopus
lagopus L. were tested in a large‐scale harvest experiment. Management units were …

Large‐scale multi‐species data on population changes of alpine or arctic species are
largely lacking. At the same time, climate change has been argued to cause poleward and …

Birds are thought to choose nest sites that meet two main functions: providing security to
both nest contents and incubating adults, and providing an appropriate microclimate for …