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Food habits of redheads at the Horicon marsh, Wisconsin

Journal of Field Ornithology

By:
and

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Abstract

Food habits of Redheads (Aythya americana) investigated at the Horicon National Wildlife Refuge, Wisconsin, during 1983-1985. Prelaying females consumed plant material almost exclusively, primarily seeds of moist-soil plant species. The diet of laying and incubating females was dominated by seeds but also contained 16-17% animal matter. Consumption of animal matter during egg production was substantially lower than reported in other studies of food habits of Redheads. The diet of Juvenile Redheads changed with age. Animal foods were nearly half of the diet of ducklings <4 wk of age, whereas older ducklings consumed primarily plant material. A diversity of flooding regimes may promote plant communities that produce importance food resources for Redheads on the Horicon Marsh.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Food habits of redheads at the Horicon marsh, Wisconsin
Series title:
Journal of Field Ornithology
Volume
67
Issue:
4
Year Published:
1996
Language:
English
Publisher:
National Biological Service
Contributing office(s):
Upper Midwest Environmental Sciences Center
Description:
pp. 649-659
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Field Ornithology
First page:
649
Last page:
659