Adrenal and Thyroid Weights in Birds
1946; Oxford University Press; Volume: 63; Issue: 1 Linguagem: Inglês
10.2307/4079906
ISSN1938-4254
Autores Tópico(s)Avian ecology and behavior
ResumoLITTLE study has been made of the relative sizes of adrenal and thyroid glands in different species of birds. One of us (Hartman, 1946) reported such a study on birds collected in the United States some years ago. In this paper, results on birds collected in Panam'a include a number of families and species not found in the United States, some migrants from the United States, and two domestic species, Gallus gallus and Coturnix cotturnix. Data from 249 species in 49 families are reported. Specimens were obtained during December and January near sea level on the Rio Chagres and during February and March at 1,300 meters elevation near the village of El Volcan in the Province of Chiriqui. This material was also used to study the muscles of locomotion as well as to furnish skins of the rare forms.
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