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The currents defined by analytic varieties
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Cutaneous Resistance to Water-Vapor Diffusion in Pigeons and the Role of the Plumage
To determine the cutaneous water-loss responses of birds to environmental temperature, we measured transcutaneous evaporation, skin and body temperature, and oxygen consumption in pigeons over a wideExpand
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Metabolic and Behavioral Responses to Fasting in the White-crowned Sparrow (Zonotrichia leucophrys gambelii)
During winter, ground-feeding bird species may occasionally be forced to fast when weather conditions (e.g., snowstorms, icing) make food temporarily inaccessible. To describe the response ofExpand
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Temperature and humidity dynamics of cutaneous and respiratory evaporation in pigeons,Columba livia
SummaryUsing a two-compartment metabolism chamber, we measured oxygen consumption simultaneously with evaporative water loss (EWL) separately from the skin and respiratory tract of pigeons exposed toExpand
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Annual Gonadal Cycles and Pituitary Gonadotropins in Zonotrichia leucophrys gambelii
The essential role of the anterior pituitary gland in the development and the function of the avian gonad has been recognized for more than three decades. However, little is known concerning annualExpand
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Geographical variation in song and song dialects of montane white-crowned sparrows
-We sampled the songs of 18 populations of montane Whitecrowned Sparrows (Zonotrichia leucophrys oriantha) in order to define their dialect groups, if any, and to explore vocal affinities with otherExpand
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An Analysis of the Heat Budgets of the Eggs and Nest of the White-Crowned Sparrow, Zonotrichia leucophrys, in Relation to Parental Attentiveness
To determine the effects of abiotic thermal stresses on the eggs of white-crowned sparrows in two localities, we developed a general model of heat exchange by eggs in open-form ("cup") nests. MajorExpand
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