| Abstract: | Storms and mammalian predation severely reduced production in a Black-crowned Night Heron (Nycticorax nycticorax) colony in two years and drought prevented nesting in two other years from 1976 to 1980. Maximum estimated production was 2.2 young per pair in 1978, the only year production was sufficient to maintain the population. |
| Genre: | Article |
| ProdID: | 1001581 |
| Citation Author: | Greenwood, R. J. |
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| Citation End Page: | 467 |
| 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: | 2 |
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| Citation Phsyical Description: | p. 465-467 |
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| Citation Search Results Text: | Observations on black-crowned night heron breeding success in a North Dakota marsh; 1981; Article; Journal; Canadian Field-Naturalist; Greenwood, R. J. |
| Citation Start Page: | 465 |
| Citation Volume: | 95 |
| Citation Year: | 1981 |
| Type: | citation/reference |
| Text: | Observations on black-crowned night heron breeding success in a North Dakota marsh; 1981; Article; Journal; Canadian Field-Naturalist; Greenwood, R. J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Thu, 1 Jan 1981 00:00 -0600 |
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