Conservation efforts are most effective when we have complete demographic information for
a species of concern. Nevertheless, fundamental gaps in our knowledge of demography still …

For altricial young, fledging is an abrupt step into an unknown environment. Despite
increasing numbers of studies addressing the post‐fledging period, our current knowledge …

Causes of evolved differences in clutch size among songbird species remain debated. I
propose a new conceptual framework that integrates aspects of traditional life-history theory …

The northern mockingbird Mimus polyglottos is a native species that is more abundant in
urban than non‐urban habitats (ie an urban‐positive species). Abundance alone, however …

Abstract Golden-winged Warblers (Vermivora chrysoptera) are Nearctic–Neotropical
migrants experiencing varied regional population trends not fully explained by breeding …

One of the most commonly estimated parameters in studies of songbird ecology is
reproductive success, as a measure of either individual fitness or population productivity …

Identifying the relative contributions of genetic, maternal, and environmental factors to
phenotypic variation is critical for evaluating the evolutionary potential of fitness‐related …

Studies of songbird breeding habitat often compare habitat characteristics of used and
unused areas. Although there is usually meticulous effort to precisely and consistently …

When opposing evolutionary selection pressures act on a behavioural trait, the result is often
stabilizing selection for an intermediate optimal phenotype, with deviations from the …

Offspring phenotypic variation can be substantially influenced by non‐genetic factors such
as maternal effects, which ultimately can influence organismal fitness. For oviparous …