Abstract
I collected female Common Crows (Corvus brachyrhynchos) during rapid follicle growth (RFG), egg-laying, incubation, and nestling periods to see whether they used stored nutrient reserves to supplement dietary intake during these stages. Body fat did not change systematically during RFG and laying. Body protein increased during RFG and decreased during laying. Female crows appeared to store fat during incubation and to use it during the brood-rearing period. Based on gizzard contents, female crows ate mostly wheat and small rodents throughout breeding.
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