Weight changes and wing moult in the Red-billed Teal

Article Sidebar

PDF

Main Article Content

R J Douthwaite

Abstract

The male Red-billed Teal Anas erythrorhyncha is longer-winged and heavier than the female but the data overlap. At Lochinvar National Park in Zambia, mean weight, reserves of abdominal fat and population size were minimal in February, during the breeding season (though none bred locally), and greatest between June and September, during the post-nuptial moult. In the moult of 1973 females probably lost 21% of their pre-moult weight, but males only 11%. It is suggested that weight loss is normally adaptive and not due to stress and allows birds to fly before the growth of the remiges is completed.

Article Details

How to Cite
Douthwaite, R. J. (1976). Weight changes and wing moult in the Red-billed Teal. Wildfowl, 123–128. Retrieved from https://tidsskrift.dk/Wildfowl/article/view/154334
Issue
Wildfowl 27
Section
Artikler

Articles in Wildfowl volumes 1-74 and in Wildfowl Special Issues 1-7  are not licensed under Creative Commons. In these volumes, all rights are reserved to the authors of the articles respectively.

The Wildfowl & Wetlands Trust (which published the journal from 1948–2020 inclusive) retains a royalty-free license in perpetuity to access and use pre-2021 issues for the purposes of research, which may involve sharing with research partners from time to time.

The copyright for this paper belongs to the Author(s). Papers published in Wildfowl 75 (in 2025) and subsequent issues are licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

In the articles published in these volumes, all rights are reserved to the authors of the articles respectively. This implies that readers can download, read, and link to the articles, but they cannot republish the articles. Authors can upload their articles into an institutional repository.