Food habits of redheads at the Horicon marsh, Wisconsin
Journal of Field Ornithology
By: K.P. Kenow and D. H. Rusch
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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.
Suggested Citation
Kenow, K., Rusch, D., 1996, Food habits of redheads at the Horicon marsh, Wisconsin: Journal of Field Ornithology, v. 67, no. 4, p. 649-659.
| 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 |