North American fauna . e Georges County during June and July 1936 (B. Carow),and on June 26, 1947; and in Calvert County on June 28, 1955(K. Stecher). Habitat.—Wood margins, hedgerows, and brushy cut-overareas of swamp and flood-plain forests and rich moist forests onthe upland. Spring migration.—Normal period: March 20-30 to May20-30; peak, April 15 to May 10. Extreme arrival dates: March5, 1949, in Baltimore County (I. E. Hampe) ; March 11, 1903, inthe District of Columbia (W. W. Cooke) ; March 16, 1945, inPrince Georges County; March 17, 1918, in Anne Arundel County(F. Harper). Extreme depa
North American fauna . e Georges County during June and July 1936 (B. Carow),and on June 26, 1947; and in Calvert County on June 28, 1955(K. Stecher). Habitat.—Wood margins, hedgerows, and brushy cut-overareas of swamp and flood-plain forests and rich moist forests onthe upland. Spring migration.—Normal period: March 20-30 to May20-30; peak, April 15 to May 10. Extreme arrival dates: March5, 1949, in Baltimore County (I. E. Hampe) ; March 11, 1903, inthe District of Columbia (W. W. Cooke) ; March 16, 1945, inPrince Georges County; March 17, 1918, in Anne Arundel County(F. Harper). Extreme departure dates: June 15, 1955, in AnneArundel County (A. L. Varrieur) ; June 14, 1899, in the Districtof Columbia (A. H. Howell) ; June 13, 1933 (R. Overing), andJune 10, 1946, in Prince Georges County; June 10, 1952, in Balti-more County (E. Willis). Fall migration.—Normal period: September 20-30 to Decem-ber 1-10; peak, October 10 to October 30. Extreme arrival dates: BIRDS OF MARYLAND AND DISTRICT OF COLUMBIA 367. Figure 67.—White-throated Sparrow banding recoveries. Each symbol repre-sents the number of records for a State or Province. Banded in Maryland,recovered elsewhere: solid triangle = recovered September through in Maryland, banded elsewhere: open triangle = banded Sep-tember through May. 368 NORTH AMERICAN FAUNA 62, FISH AND WILDLIFE SERVICE September 13, 1955, in Worcester County (S. W. Simon); Sep-tember 14, 1918 (L. D. Miner, R. W. Moore), and September 15,1889 (C. W. Richmond), in the District of Columbia. Extremedeparture dates: December 20, 1944, in Prince Georges County;December 13, 1933, in the District of Columbia (C. H. Benjamin). Maximum counts.—Spring: 355 in Montgomery County onMay 10, 1952 (P. A. DuMont, et al.) ; 336 at Patuxent Refuge onApril 29, 1944; 200 near Emmitsburg, Frederick County, onMay 7, 1953 (J. W. Richards). Fall: Hundreds in the OceanCity area on October 2, 1949 (M. B. Meanley); 196 at PatuxentRefuge on October 30,
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