Survival of the Smallest Nestling in Goshawks
Abstract
A nest containing four Goshawk chicks was observed during the 1979 breeding season. One young was smaller than its siblings throughout most of the nestling period. It called more during feedings and received less food. The adult female varied in her response to the small bird as the season progressed. She ignored calls early in the season, yet the young hawk was fed in the nest after all other chicks had flown. Possible reasons for this contradiction in adult behavior and its relation to food supply are discussed.