Our Common Birds and How to Know Them 
April 
to to 20. = Palm Warblers pass. Field Sparrows and Chipping Sparrows come. 
Red Crossbills leave for the north. 
20 to 30 ~)=60 White-throated Sparrows, Chewinks, Chimney Swifts, Brown Thrashers and 
House Wrens appear. 
Winter Wrens go north. Most of the Fox Sparrows have passed. 
May 
1 to 10. ~=Whip-poor-wills, Catbirds, Barn, and Bank Swallows, Kingbirds, Oven-birds, 
Wilson’s Thrushes, Wood Thrushes, Blue Yellow-backed Warblers, 
Yellow Warblers, Black-throated Blue Warblers, Black and White Warb- 
lers, Chestnut-sided Warblers, Solitary Vireos, White-eyed Vireos, Yellow- 
throated Vireos, Redstarts, Grasshopper Sparrows, Rose-breasted Gros- 
beaks, Baltimore Orioles, and Yellow-breasted Chats arrive. 
Juncos and Golden-crowned Kinglels go north. Ruby-crowned Kinglets also 
resume their northward flight. 
36 
