. Bird-life : a guide to the study of our common birds . advance. All the first comerswill doubtless be males, this sex, as a rule, preceding thefemales by several days. About the middle of March we may look for theWoodcock, Meadowlark, Fox Sparrow, Cowbird, andPhoebe ; their time of arrival being largely dependentupon the temperature—warm weather hastening, andcold weather retarding their movements. Toward the last of March, Wilsons Snipe, the King-fisher, Mourning Dove, Swamp and Field Sparrows aredue. Early in April the Purple Finch, White-throated,Yesper, and Chipping Sparrows will announc
. Bird-life : a guide to the study of our common birds . advance. All the first comerswill doubtless be males, this sex, as a rule, preceding thefemales by several days. About the middle of March we may look for theWoodcock, Meadowlark, Fox Sparrow, Cowbird, andPhoebe ; their time of arrival being largely dependentupon the temperature—warm weather hastening, andcold weather retarding their movements. Toward the last of March, Wilsons Snipe, the King-fisher, Mourning Dove, Swamp and Field Sparrows aredue. Early in April the Purple Finch, White-throated,Yesper, and Chipping Sparrows will announce their re-turn in familiar notes, and at the same time Tree Swal-lows, Myrtle Warblers, Pipits, and Hermit Thrushes vdWappear. They will soon be followed by Barn Swallowsand Ruby-crowned Kinglets. The migration is now well under way, and we goto the field with the assurance of meeting some latelyarrived feathered friend almost daily. Between April20 and 30 we will doubtless note among the newcomers,the Green Heron, Spotted Sandpiper, Whip-poor-will,. PiiATE XIV. Page 104. BED-SHOULDERED HAWK. Length, 19-00 inches. Adult, upper parts blackish brown and rusty;lesser wing-coverts bright chestnut; wings and tail black and white;under parts rich rusty and white. Young, less rusty on back, wingsand tail largely rusty; under parts white, spotted or streaked withblackish. TIMES OP MIGRATION. 51 CWmney Swift, Least Flycatcher, Towhee, Purple Mar-tin, Cliff and Bank Swallows, Black and White andBlack-throated Green Warblers, Oven-bird, House Wren,Brown Thrasher, Catbird, and Wood Thrush. Thistroop surely is not without musicians. In ringingtones they herald the victory of Spring over Winter. The season of cold waves has passed, and the birdsnow appear with the regularity of calendar May 1 to 12 the migration reaches its is a time of intense interest to the bird student, andhappy is he who can spend unlimited time mornings we may find ten or more diffe
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