Seasonal Bird Populations in a South Central Louisiana Bottomland Hardwood Forest

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Abstract
Bird populations in a Louisiana [USA] bottomland hardwood forest were censused year-round from a variable width strip transect. Transect strip widths were based on distances each species was effectively detected. Highest populations (1235-2035/km2) were found Dec.-Feb. Lowest numbers were detected Aug.-Oct. (296-346/km2). There was a peak in number of species in spring, but no peak in spring or fall populations. Bird species diversity (H'' = .SIGMA.pilogepi) was not correlated with species richness (r = 0.218), but was associated with equitability (H''/H''max).