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Changes in plasma levels of luteinizing hormone, steroid, and thyroid hormones during the postfledging development of white-crowned sparrows, Zonotrichia leucophrys

✍ Scribed by John C. Wingfield; Jan P. Smith; Donald S. Farner


Book ID
113157402
Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
534 KB
Volume
41
Category
Article
ISSN
0016-6480

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✍ Wingfield, John C. ;Vleck, Carol M. ;Farner, Donald S. πŸ“‚ Article πŸ“… 1981 πŸ› John Wiley and Sons 🌐 English βš– 346 KB

## 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