North American fauna . 20 feet inheight) in Garrett County in 1949 (Robbins and Barnes, 1949). Maximum counts (nonbreeding).—Spring: 37 at PatuxentRefuge on May 10, 1950. Fall: 35 at Middle River, BaltimoreCounty, on September 24,1950 (E. Willis) ; 30 near Seneca, Mont-gomery County, on September 25, 1949 (I. R. Barnes, S. ) ; 28 at Patuxent Refuge on September 25, 1943. CERULEAN WARBLER Dendroica ceru/eo (Wilson) Status.—Breeding (see fig. 52) : Fairly common in the westernpart of the Ridge and Valley section (Allegany and WashingtonCounties, west of Hagerstown Valley) ; fairly common
North American fauna . 20 feet inheight) in Garrett County in 1949 (Robbins and Barnes, 1949). Maximum counts (nonbreeding).—Spring: 37 at PatuxentRefuge on May 10, 1950. Fall: 35 at Middle River, BaltimoreCounty, on September 24,1950 (E. Willis) ; 30 near Seneca, Mont-gomery County, on September 25, 1949 (I. R. Barnes, S. ) ; 28 at Patuxent Refuge on September 25, 1943. CERULEAN WARBLER Dendroica ceru/eo (Wilson) Status.—Breeding (see fig. 52) : Fairly common in the westernpart of the Ridge and Valley section (Allegany and WashingtonCounties, west of Hagerstown Valley) ; fairly common locally inthe Piedmont section—occurring in the Susquehanna River valley,in the Potomac River valley, along the Patapsco River, and in thevicinity of Dulaney Valley northeast of Baltimore City, in Balti-more County (Kolb, 1943) ; uncommon in the Savage River valleyin Garrett County; rare elsewhere in the Allegheny Mountain sec-tion. Transient: Uncommon in the Ridge and Valley section; rarein all other LEGENDV/5\ Principal Range9 Local Record Figure 52.—Breeding range of Cerulean Warbler. 290 NORTH AMERICAN FAUNA 62, FISH AND WILDLIFE SERVICE Habitat.—Flood-plain forests, and rich, moist deciduous forestson the upland. Nesting season.—Probably late May to early July. Egg dates(2 nests) : June 9, 1901 (F. C. Kirkwood), and June 10, 1900(Kirkwood, 1901), in Baltimore County. Nestling dates (2 nests) :June 9, 1901, and June 14, 1903, in Baltimore County (F. C. Kirk-wood) . Spring migration.—Occurrence peak: May 1 to May 15. Ex-treme arrival dates: April 20, 1954, in Allegany County (, E. Minke) ; April 25, 1953, in Frederick County ( Richards) ; April 26, 1953, in Worcester County; April 27,1902, in Baltimore County (F. C. Kirkwood). Extreme departuredates: May 31, 1949, in Prince Georges County; May 29, 1902, inMontgomery County (USNM—W. R. Maxon). Fall migration.—Extreme arrival dates: August 8, 1953, inPrince Georges County; August 1
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1880, booksubjectzoology
