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Relationships Between Habitat and Snag Characteristics and the Reproductive Success of the Brown-headed Nuthatch (Sitta pusilla) in Eastern TexasAuthor(s): L. Lynnette Dornak; D. Brent Burt; Dean W. Coble; Richard N. Conner
Source: Southeastern Naturalist 3(4):683-694
Publication Series: Miscellaneous Publication
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DescriptionHabitat use and reproductive success of the Brown-headed Nuthatch (Sitta pusilla Latham) were studied in East Texas during the 20012002 breed- ing seasons. We compared nest cavity selection at used and randomly selected non-used areas. Height of nest trees, midstory density, and percent leaf litter were negatively correlated with nest site selection. Brown-headed Nuthatches showed a strong preference for short snags; yet placed their nest cavity entrances near the top of the snags. While nuthatches may be selecting for habitats with little or no midstory density, percent of leaf litter in the nest sites is most likely the consequence of frequent burning. No significant differences among habitat variables and snag characteristics were found between successful and failed nest cavities. Additionally, no habitat variables were correlated with the number of chicks fledged per nest. Predation was the major cause of nest failure in this study.
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CitationDornak, L. Lynnette; Burt, D. Brent; Coble, Dean W.; Conner, Richard N. 2004. Relationships Between Habitat and Snag Characteristics and the Reproductive Success of the Brown-headed Nuthatch (Sitta pusilla) in Eastern Texas. Southeastern Naturalist 3(4):683-694
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