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Journal ArticleDOI
Nutrient Reserves and Reproductive Performance of Female Lesser Snow Geese
Journal ArticleDOI
Eggs, egg formation and the timing of breeding
TL;DR: The eggs of birds contain all the nutrients necessary for the developing embryo, and while in some species these may be gathered and stored over a period of time, in many species they seem to be obtained on a daily basis.
Journal ArticleDOI
Shell thinning in avian eggs by environmental pollutants
TL;DR: In North America shell thinning has often been associated with population decreases, but in Britain declines in shell thickness are not thought to be responsible for the population decreases observed in certain raptor species.
Journal ArticleDOI
Reconstructing avian diets using stable-carbon and nitrogen isotope analysis of egg components: patterns of isotopic fractionation and turnover
TL;DR: In this paper, stable-carbon and nitrogen isotope fractionation factors between diet and whole yolk, lipid-removed yolk and albumen, and shell membranes of eggs of captively-raised Mallards (Anas platyrhynchos), Japanese Quail (Coturnix japonica), Prairie Falcons (Falco mexicanus), Peregrine Falcons (Fernández peregrinus), and Gyrfalcons (Falcan rusticolis) were established.
Journal ArticleDOI
Diet Choice in the Herring Gull: Constraints Imposed by Reproductive and Ecological Factors
Raymond Pierotti,Cynthia Annett +1 more
TL;DR: Choice of nesting habitat may constrain diet choice, diet choice may have major effects on breeding performance, and energy may not be the proper currency for examining diet choice in carnivores subject to a variety of constraints are suggested.