Botanical Characteristics of Autumnal Blackbird Roosts in Central Ohio
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Date
1983-06
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Abstract
Vegetative parameters of 14 autumn blackbird roosts in central Ohio were measured. Common characteristics of roosts included young trees (x = 11.30 years, SD = 2.86), high densities (x = 7746 trees/ha, SD = 5328), and thick canopies. Plant communities were adapted to moist sites and included American elm {Ulmus amencana), silver maple (Acer saccharinum), green ash (Fraxinus pennsy/vanica), red maple {Acer rubrum), sugar maple (Acer saccbarum) and black cherry (Prunus serotina). Tree density, twig height, and twig index were significantly related to numbers of birds per ha.
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Author Institution: Division of Fisheries and Wildlife Management, School of Natural Resources, The Ohio State University
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The Ohio Journal of Science. v83, n3 (June, 1983), 131-135