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Measurement of Some Lake-Shore Territories of the Song Sparrow
Roderick A. Suthers
The Wilson Bulletin
Vol. 72, No. 3 (Sep., 1960), pp. 232-237
Published by: Wilson Ornithological Society
Stable URL: http://www.jstor.org/stable/4158836
Page Count: 6
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The territories of four pairs of Song Sparrows nesting along a lake shore in Clearwater County, Minnesota, were measured. The utilized area averaged 0.47 acre. The maximum territory averaged 96 per cent of the utilized area. Checks on original measurements in one case added 0.02 acre to the utilized area, and in two other instances did not change it. Deduction of given percentages of the peripheral locations caused a fairly even decrease in size of two territories, but caused an uneven decrease in the others. The size of lake-shore territories was found to be intermediate between those reported by other workers for Song Sparrows on islands and for those on mainlands.
The Wilson Bulletin © 1960 Wilson Ornithological Society