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Publication Extents

Not all publications have extents, not all extents are completely accurate
Wilson's warbler in Maryland in late December
C.S. Robbins
1949, The Auk (66) 207-208
On December 22, 1947, while participating in a Christmas Bird Count on the eastern shore of Maryland, I observed a Wilson's warbler (Wilsonia pusilla) feeding along a sunny margin of a woods near the Pocomoke River, three miles north of Snow Hill. It was with a flock of myrtle warblers...
Ecology of a nesting red-shouldered hawk population
R. E. Stewart
1949, The Wilson Bulletin (61) 26-35
An ecological study of a nesting Red-shouldered Hawk population was made over a 185 square mile area on the Coastal Plain of Maryland in 1947. The courting and nesting season extended from late February until late June.....During the nesting season a combination of fairly extensive flood-plain forest with adjacent clearings...
DDT and the balance of nature
J.P. Linduska
1949, Proceedings and Papers of the International Technical Conference on the Protection of Nature (1) 363-371