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1. 

   Bird Hormones and Bird Migrations

   Analyzing Hormones in Droppings and Egg Yolks and Assessing Adaptations in Long-Distance Migration

   Av Wolfgang Goymann, Suzanne Jenni-Eirmann m. fl.

   Häftad, 2006

   1247 kr

   Tillfälligt slut

   The analysis of hormones in feces or excrement presented in the first part of this volume is a relatively new noninvasive method for gaining insight into an animal's physiology. Endocrinological cycles of free-living animals can be studied without the stress caused by capture. Hence, this …