| Abstract: | Foods found in three species of dabbling ducks collected during summer from bog ponds, and sedge pools in taiga on the north side of Great Slave Lake, Northwest Territories, are described. Animal material in the esophageal contents of 10 adult American Widgeons (Mareca americana) averaged 31 i?? 34 per cent (P<0.05) by volume. A significantly higher percentage of animal material was found in Class I and II widgeon ducklings (66 i?? 22 per cent) than in Class IIIa ducklings and flying juveniles (12 i?? 20 per cent) of this species. Animal material comprised 87 i?? 35 per cent of esophageal contents from five Class II and flying juvenile Mallards (Anas platyrhynchos) and 100 per cent of that from an adult female Green-winged Teal (A. carolinensis). |
| Genre: | Article |
| ProdID: | 1001812 |
| Citation Author: | Bartonek, J. C. |
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| Citation End Page: | 376 |
| Citation Issue: | 4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Canadian Field-Naturalist |
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| Citation Number Of Pages: | 3 |
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| Citation Phsyical Description: | p. 373-376 |
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| Citation Search Results Text: | Summer foods of American widgeon, mallards, and a green-winged teal near Great Slave Lake, N.W.T; 1972; Article; Journal; Canadian Field-Naturalist; Bartonek, J. C. |
| Citation Start Page: | 373 |
| Citation Volume: | 86 |
| Citation Year: | 1972 |
| Type: | citation/reference |
| Text: | Summer foods of American widgeon, mallards, and a green-winged teal near Great Slave Lake, N.W.T; 1972; Article; Journal; Canadian Field-Naturalist; Bartonek, J. C. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sat, 1 Jan 1972 00:00 -0600 |
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