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 behaviour of individual birds before and during the breeding period may be an important factor determining reproductive success. One commonly observed behaviour during the breeding period in many
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