Size-assortative mating is a nonrandom association of body size between members of mating pairs and is expected to be common in species with mutual preferences for body size. In this study, we investi
The snow petrel (Pagodroma nivea) is the most common bird of the Bunger Hills, with an estimated population of 1000 breeding pairs in colonies of up to 50 pairs dispersed widely throughout the souther
Incubating birds must allocate their time and energy between maintaining egg temperature and obtaining enough food to meet their own metabolic demands. We tested the hypothesis that female house wrens
