Plasma prolactin during the breeding season in adult and immature macaroni (Eudyptes chrysolophus) and gentoo (Pygoscelis papua) penguins

• Published in: General and Comparative Endocrinology
• Main Authors: Williams, T.D., Sharp, P.J.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Elsevier 1993
• Subjects: Bird Island; Eudyptes chrysolophus; Pygoscelis papua
• Online Access: http://nora.nerc.ac.uk/id/eprint/518122/; https://doi.org/10.1006/gcen.1993.1171

Plasma prolactin levels were measured in free-living breeding adult and immature (prebreeding) macaroni (Eudyptes chrysolophus) and gentoo (Pygoscelis papua) penguins at Bird Island, South Georgia (54°S, 38°W). Macaroni and gentoo penguins first breed at 5-6 and 2 years of age, respectively. In adul...