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Spring Arrival of Summer Resident Birds on the Lower Rio Grande, New Mexico
Harry C. Williams and Richard F. Johnston
The Southwestern Naturalist
Vol. 2, No. 1 (Jan., 1957), pp. 28-32
Published by: Southwestern Association of Naturalists
Stable URL: http://www.jstor.org/stable/3669561
Page Count: 5
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The spring arrival dates in the Mesilla Valley, New Mexico, for eighteen species of summer resident birds are presented graphically.
The Southwestern Naturalist © 1957 Southwestern Association of Naturalists