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 TIMES OP MIGRATION. 51 Chimney Swift, Least Flycatcher, Towhee, Purple Mar- tin, Cliff and Bank Swallows, Black and White and Black-throated Green Warblers, Oven-bird, House Wren, BroNvn Thrasher, Catbird, and Wood Thrush. This troop surely is not without musicians. In ringing tones they herald the victory of Spi"ing over Winter. The season of cold waves has passed, and the birds now appear with the regularity of calendar events. From May 1 to 12 the migration reaches its height. It is a time of intense interest to the bird student, and happ}^ is he who can spend unlimited time afield. Some mornings we may find ten or more different s2De- cies that have come back to us, and each one may be represented by many individuals. The woods are thronged with migrants, and the scantily leaved trees and bushes enal)le us to observe them far more easily than we can when they travel southward in the fall. During this exciting period we should see the Cuckoos, Nighthawk, Ruby-throated Hummingbird, Crested Fly- catcher, Kingbird, Wood Pewee, Baltimore and Orchard Orioles, Bobolink, Indigo Bunting, Eose-breasted Gros- beak, Scarlet Tan age r, Red -eyed, Warbling, Yellow- throated, and White -eyed Yireos, Long-biUed Marsh Wren, Wilson's Thrush, Redstart, Yellow-breasted Chat, Maryland Yellow-throat, Yellow Warbler, and others of its family. Succeeding days will bring additions to the ranks of these species, and there will also be numerous small Warblers to look for, but by May 12 all our more familiar and conunon birds have arrived. During the rest of the month, as the transient visitants, or species which nest farther north, pass onward, birds gradually decrease in numbers, and by June 5 we have left only those that will spend the summer with us. The migration over, we can now give our whole