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Further Evidence on the Refractory Period in the Reproductive Cycle of the Golden-Crowned Sparrow, Zonotrichia coronata

✍ Scribed by Alden H. Miller


Book ID
124611242
Publisher
University of California Press
Year
1951
Tongue
English
Weight
240 KB
Volume
68
Category
Article
ISSN
0004-8038

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## Abstract Plasma levels of LH were measured through the course of 24 hours in photosensitive and photorefractory, adult male white‐crowned sparrows, __Zonotrichia leucophrys gambelii__, exposed to both long (20L, 4D) and short (8L, 16D) days. In photorefractory birds held on both long and short d