Name 



Flicker. ■ • .* ' ' 

 Whip-poor-wi" . • ■ 

 Xighihawk. . . ■ ■ 

 Cbimney Sw.tt • ■ ■ 

 Hnmniingbird. . ■ • 

 Kingbird. • ■ • • 

 Crested Flycatcher. . 



Phoebe 



Bobolinif 



Cnwbird • • • • • 

 Red-winged Blackbird 

 Baltimore Oriole. . . 

 Purple Griuokle . 

 Chipping Sparrow. . 



Chewink 



Indisobird 



Scarlet Tanager . . . 

 Purple Martin . . . 

 Barn Swallow. . • • 

 Red-eyed Vireo. • • 

 Black and White Warbler 

 Chestnut-sided Warbler 

 Ovenbird. 

 Maryland Yellow-lhroat 



Chat 



Catbird. . . ■ 

 Brown Thrasher 

 House Wren 

 Wood Thrush. 

 Hermit Thrush 

 Robin . . . 

 Bluebird. . . 





Apr. 24 



May 

 May 8 



• so 



Apr. 22 



Res. 



Res. 

 Apr. 4 

 Res, 



Apr. 17 

 Apr. 



May 8 

 Apr. 20 



Apr. 16 

 Apr. It) 

 May 8 

 May 8 



Mar. 21 

 May 9 



Mar. 21 





^ 







c .- 



> 



1" 



Res. Mar. 

 Apr. 20 Apr. 



Apr. 28 Apr. 

 May 7| . . 

 May 28 Apr. 

 May 14 May 



^M 





-W 



^ 





16 Jan. 1 



25 May 15 



iMay 28 



29 Apr. 17 



2.5 May 15 



11 May 8 



Mar. 13 



May 2 

 May 2 



Res. Feb. 

 May 6 

 Jan. 5, Feb. 

 Mar 14, Mar, 

 Apr. 16; Apr. 

 May 29' . . 

 . . . [May 

 Apr. 8 Apr. 

 Apr. 1-5 May 

 May 12 May 

 May 10 May 



Apr. 30 . . . [May 

 Apr. 30 May ll'May 



May 28 May 

 . . [May 



Apr. 10 Apr. 



Apr. 28 Apr. 



May 14 May 



Res. 



Mav 8 

 Apr. 22 

 May 2 

 May 14 



Mar. 21 



Res. 

 Res. 



Feb. 

 Feb. 



Mar, 

 28 Mar. 

 . IMay 

 14Feb 

 28 i Mar. 



2! Apr. 

 . Mav 

 12|Ma> 



2jApr. 

 121 Apr. 

 15 May 

 15 Apr. 

 • I M ay 



2|Apr. 



l|Apr. 

 29, May 



8 Apr. 

 20:Apr. 

 25 'Apr. 

 22 May 

 Jan. 

 Jan. 

 14 Mar, 



c 



Apr. 6 



Apr. 

 May 

 May 



20 



Apr. 



May 

 Ap 



Feb 



6iFeb 



10 



Res. 

 Apr. 

 May 

 Apr. 

 May 

 May 

 May 

 Mar. 

 May 

 Mar. 

 Mar. 

 May 

 Feb. 

 Mar. 

 Apr. 

 May 

 May 

 Apr. 

 Apr. 

 May 

 Apr. 

 May 

 Apr. 

 Apr. 

 May 

 Apr. 

 Apr. 

 Apr. 

 May 

 Apr. 

 Res. 

 20 Res. 

 I 



May 9 



Mar. 18 



20 

 29 

 17 



9 



8 

 11 

 18 

 11 

 13 



6 

 12 



6 Mar, 

 27[ 



3, Apr. 



uj 



10 May 



24 . 

 17 



10 May 

 24 May 

 3 iMay 

 26 May 

 16 "' 

 1-5 

 26 





Mar. 

 May 



..o 

 1^ 





May 

 Apr. 



Apr. 

 Apr. 

 Mar. 



Apr. 

 May 

 May 

 Apr. 

 Mar. 

 May 

 Mar. 

 Mar. 

 I May 

 3'var. 



. iMar. 



19 Apr. 



. [May 



13 May 

 . jApr. 



jApr. 



14 May 

 3 May 



12 May 

 8 Apr. 

 12 Apr. 



I 

 12 Apr. 



. [Apr. 

 , lApr. 

 28 May 



Apr. 

 Mar. 

 Mar. 



10 Mar. 

 13 May 



May 

 22' A pi-. 

 18. May 



8; May 

 24 May 

 14! Mar. 

 lo'May 



7 Mar. 



6 Feb. 

 13 May 



3 Feb. 

 20!Mar. 



4 1 Apr. 

 13 May 

 lllMay 

 22 Apr. 

 24JApr. 

 13! May 

 ISiMay 

 lo'May 

 18 Apr. 

 22 Apr. 

 I May 

 24; Apr. 

 131 Apr. 

 17!Apr. 

 13, May 

 10 



3 1 Mar. 

 , 3 Feb. 



Apr. 

 May 

 .May 

 Vlay 

 Mar. 



Apr. 

 Mar. 



Feb. 

 Mar 

 Apr. 

 May 

 May 

 Apr 



May 4 



May 

 Apr. 

 May 

 May 

 .Apr. 

 Apr. 

 May 

 Apr 

 Feb. 



Feb. 23 



Mar. 13 



May 10 



May 16 

 Mar. 17 



Mar. 

 May 

 Jan. 

 Mar 

 Apr. 

 May 

 May 



Apr. 12 

 May 11 



Apr. 

 May 

 May 

 Apr. 

 Apr. 

 Apr. 



Mar. 

 Feb. 



Oh 'M 



Apr. 27 



May 

 May 

 Apr. 

 May 



Mar. 

 May 

 Feb. 

 ,\pr. 

 Apr. 

 May 

 May 

 Apr. 

 Apr. 

 May 

 Apr. 





M 



Mar. 

 May 



May 

 May 

 Mar. 

 May 

 Apr, 

 Mar. 

 .■Xpr. 



17iFeb. 

 8 Apr. 



23 [May 



14 1 May 



21 1 

 May 



Apr. 

 May 



Apr. 

 .Apr. 

 Apr. 

 May 

 Apr. 

 Feb, 

 Mar. 



Apr. 

 May 



May 8 



.A^pr. 

 Apr 

 .Apr. 

 May 



Mar. 

 Mar. 



^a 



Mar. 10 



Apr 30 



Mar. 4 



Apr. 18 



May 

 May 

 Mar. 

 May 

 Apr. 

 Mar. 

 Apr. 

 Feb, 

 Apr. 

 Apr. 

 May 

 May 

 Apr. 

 Apr. 

 May 

 May 

 May 

 Apr. 

 May 



May 

 Mav 

 Apr. 28 

 13, May 6 



• May ' 

 2 Mar. 

 2 Mar. 1 



— ""00 



lis" 

 £?" 



May 

 May 

 Mar. 

 May 



Mar. 

 May 

 Mar. 

 .\pr. 

 May 



May 

 May 

 May 



Apr. 

 Apr. 



S5 



Mar. 4 



Apr, 



(22 



Mar. 30 



Mar. 



May 



Mar. 



Mar. 



May 



Feb 



Mar 



May 



May 

 24 Apr. 



May 

 May 

 Mar. 

 May 



May 

 Apr. 



May 10 



26 Apr. 

 28 Apr. 

 . , . 



May 



Mar. 

 Feb. 



8 May 



Apr. 



3|Apr. 



3iApr. 



OiMar. 

 1 Mar. 



Mar. 

 May 

 Mar. 

 Apr. 



May 

 May 



\pr. 

 May 



«> 



O 



Mar. 

 Apr. 

 May 

 A pr. 

 May 

 May 

 May 

 Mar. 



Mar. 

 Mar. 

 Jlay 

 Mav 

 Mar. 

 Apr. 

 \'ay 

 May 

 Mar. 

 May 

 MaV 

 May 



Apr. 

 May 

 May 

 K pr. 

 .Apr. 

 Apr. 







Mar. 

 May 

 May 

 Apr. 



May 5 

 May 2 

 Apr. 25 

 May 4 



Apr. 

 Mar. 1 Mar. 

 Mar. 1 Feb. 



May 

 May 

 Res. 

 May 

 Mar 

 Mar. 

 Mav 

 Feb. 

 Apr. 

 Apr. 

 May 

 Mav 

 Apr. 

 A pr. 

 May 

 ,V[ay 

 . ]May 

 22 May 

 2 May 



May 

 Apr. 

 Apr. 

 Apr. 

 May 

 Apr. 

 Mar. 

 Res. 



16 Mar. 24 

 25 Mav 12 

 15Juii. 3 

 30 May 24 

 . [May 27 



8 May 14 

 11 . . . 



Mar. 2fi 

 15 . . . 

 13 . . . 



5 Mar. 6 



7 May 10 

 26 



5 



24 



15 



15 J 



10 . 



16JApr. 24 



13 May 7 



1 Apr. 26 



13 May 7 



■ May 10 



Apr. 27 



1 Apr. 13 

 1 Apr, 21 

 ) May 16 

 ) May 15 



May 15 

 Apr 25 

 Apr. 27 

 Apr. 23 

 Apr. 13 

 Mar. 7 

 Mar. 8 



TABLE II. 



SPRING MIGRATION, 1921, 



Eart.ifst datrs op arrival of 

 thibtv-two species at nineteen 

 stations outside thr philadel- 

 phia circle. 



