NiMKS. 



a" 



O 



Res, 

 Apr. II 



Apr. 11 



Flicker 



Whip-poor-will 



Niglithawk. 



Chimnej Swift 



Hummingbird 



Kingbird 



Crested Flycatcher 



Phoebe 



Bobolink 



Cowbird 



Red-winged Blackbird 



Baltimore Oriole 



Purple Grackle 



Chipping Sparrow 



Chewink 



Indigobird jMay 2 



Scarlet Tanager 



Purple Martin Apr. 14 



Barn Swallow Apr.25 



Red-eyed Vireo 



Black-and-white Warbler 

 Chestnut-sided Warbler... 



Ovenbird 



Maryland Yellowthroat. ...|Apr.25 

 Chat 



Apr.n 



Res. 

 May 2 



Apr.ll 

 Apr. 20 



Catbird 



Brown Thrasher., 



House Wren 



Wood Thrush 



Hermit Thrush.... 



Robin 



Bluebird 



May 1 

 Apr.25 

 May 2 



Res. 

 Res. 



5co 



< 



Apr. 1 1 



Apr.ll 

 May 14 



Apr. 14 

 Apr.20 



May 1 



Apr. 30 

 Apr.30 



Apr.30 

 Apr.17 



Mar. 15 



Res. 



Apr.22 

 May 27 

 Apr. 23 

 May 18 

 Apr. 9 

 May 12 



Res. 

 May 9 



Res. 

 Mar. 25 

 Apr. 21 

 May 9 



Apr. 13 

 May 9 

 May 1 1 

 May 15 

 May 1 1 

 May 1 1 

 May 9 

 May 22 

 May 2 

 Apr. 28 

 May 2 



Feb. 29 

 Res. 



Mar.25 

 Apr.26 



May 2 



Apr.30 

 May 



Mar. 12 

 May 1 1 



Mar. 31 

 Apr.25 



May 16 

 Mar. 29 

 Apr.25 

 May 16 



May 3 

 May 9 

 May 23 



Apr.25 

 May 8 



Mar. 15 

 Mar. 4 





Feb. 1 

 May 29 



Apr. 14 



Apr.25 

 May 4 

 Mar.25 



Mar.30 

 Mar. 10 

 May 4 

 Mar. 9 

 Apr. 3 

 Apr. 4 

 May 9 

 May 18 

 Apr. 3 

 Apr. 19 

 May 9 

 Apr.25 

 May 14 

 May 1 

 May 3 

 May 29 

 Apr.25 

 Apr. 18 

 Apr.25 

 May 1 

 Apr.21 

 Mar. 3 

 Mar. 11 



Q 2 



:2^ 



Mar.24 

 Apr.25 

 May 17 

 Apr. 23 

 May 16 

 May 9 

 May 9 



Mar.28 

 May 16 

 Mar. 9 

 Apr. 18 

 Apr. 10 

 May 15 

 May 2 

 Apr. 15 

 Apr. 12 



Apr.25 

 May 9 

 Apr.25 



o 

 5^ 



Mar. 23 

 Apr 30 



May 16 

 Apr.22 

 May 16 

 May 1 

 Apr.30 

 Mar. 22 

 May 9 

 Mar. 23 

 Mar. 11 

 May 1 1 

 Mar. 3 

 Apr. 1 

 Apr.23 

 May 1 1 

 May 1 1 



£& 



Mar. 15 



Apr.l9 



Apr. 10 

 Apr.25 

 Apr.25 

 May 2 



Mar. 23 



Mar. 12 



Apr. 13 

 May 9 

 Apr.23 

 May 1 1 

 Apr.30 

 Apr.30 

 May 16 

 Apr.23 

 Apr. 18 

 Apr.22 

 May 8 

 Apr. 8 

 Mar. 12 

 Mar. 10 



jMay 9 

 May 3 

 Mar. 17 

 May 9 

 Mar. 12 

 Mar. 1 1 

 May 7 

 Feb. 20 

 Mar. 29 

 Apr. 24 

 May 12 

 May 9 

 Mar, 31 

 Apr. 18 

 May 9 

 May 1 

 May 1 2 

 May 2 

 May 1 

 May 1 2 

 May 2 

 Apr.25 

 Apr.24 

 May 7 



Feb. 25 

 Mar. 7 



1^ 



Mar. 23 



May 2 

 May 22 

 Apr.24 



May 3 



May 



Mar.28 



Mar. 29 

 Mar. 2 2 



Mar. 12 

 Apr. 13 



May 12 

 May 12 

 Apr.26 

 Apr.27 

 May 9 



May 15 

 May "2 



Apr. 1 9 

 Apr.25 



May 15 

 May 15 



»3 S 



Mar. 26 



Apr.22 

 Apr. 3 



Mar. 15 

 Apr.ll 

 May 2 

 May 10 





Mar. 11 Mar.30 

 May 25 



May 



11 Apr.21 



...iMay 4 

 29 May 3 

 15'May 9 

 22'Feb.20 

 1 1 May 1 

 ...lApr.lO 

 irMar.17 

 llJMay 7 

 11 'Mar, 12 

 20[Apr.22 

 ...Apr. 18 

 ...iMay 15 

 16. May 7 

 2c|Apr.20 

 25 'May 1 



May 9 



May 4 May 9 

 May 2 

 Apr.22 



Feb. 18'Mar.ll 

 |Mar.l8 



May 10 

 May 1 

 May 9 

 May 1 

 May 5 

 May 1 

 May 1 

 May 5 

 Apr.20 

 Mar. 19 

 Mar. 10 



^aJ 



Mar. 10 



Apr.22 

 May 23 

 May 5 

 May 4 

 Apr. 1 

 May 6 

 Apr. 16 

 Mar. 11 

 May 11 

 Mar. 5 

 Apr. 3 

 Apr.25 

 May 17 

 May 17 



Apr.22 

 May 6 

 Apr.30 

 May 17 

 May 4 

 Mav 6 

 May 16 

 May 6 

 Apr.26 

 Apr.25 

 May 5 



Mar. 12 

 Mar. 8 





Apr.20 



Apr.25 

 May 9 

 Mar.28 



Apr.ll 

 Mar. 11 

 May 9 

 Res. 

 Apr. 12 

 Apr. 18 



May 23 

 Mar.30 

 Apr.l9 



May 1 

 May 12 

 May 2 

 May 9 



May 5 

 Apr.23 

 May 15 

 May 6 

 Apr.23 

 Mar. 14 

 Mar.U 



^^ 



=3^ 



Mar.28 



May 20 

 Apr.24 



Apr.24 

 May 6 

 Mar 28 

 May 7 

 Apr.30 

 Mar. 21 

 May 2 

 Mar. 2 

 Apr. 16 

 Apr.25 

 May 6 

 May 15 



Jtay 2 

 May 21 

 Apr.24 

 May 20 

 Apr.25 

 Apr.24 



May 4 

 Apr.25 

 Apr.25 

 May 7 



Mar. 2 

 Mar. 2 



1^ 

 Apr. 2 



May 2 1 

 Apr. 13 



May 16 

 May 13 



Mar. 27 



Apr 10 

 Mar.28 

 May 2 

 Mar. 15 

 Mar.27 

 Apr.lO 

 May 9 

 May 9 

 Mar.26 

 Apr.21 

 May 5 

 Apr.17 

 May 13 

 Apr.24 

 May 7 

 May 23 

 Apr.27 

 May 8 

 Apr.24 

 May 15 

 Apr.17 

 Feb. 28 

 Feb. 28 





Mar.26 Mar.26 



, May 8 



May 7|May 26 

 Apr.l8 May 12 

 May 16 May 23 

 Apr.24iMay 5 



May 7| 



Mar.28'Mar.27 



[May 11 



Mar.28| 



Mar.28 Mar. 12 

 May 7 May 1 1 

 Mar.l2l 



Apr. 7 

 Apr.24 

 May 9 

 May 15 

 Apr. 3 

 Apr. 18 



Apr.23 

 May 4 

 May 18 

 May 7 



Apr.22 



May 91 Mil 

 Apr,25'Mny 

 May 8 'May 17 

 Apr. 26lMay 7 



May 7 

 May 16 

 Apr 26 

 Apr.24 

 Apr.24 

 Apr.25 

 Apr.22 

 May 7 



May 18 



May 4 

 May 7 

 Apr.22 

 Apr. 16 

 Mar. IG 



Mar. 14 Mar. 16 



TABLE II. 



SPRING MIGRATION, 1920, 



Earlikst dates of arrival op 

 thirty-two species at nineteen 

 stations outside the philadel- 

 phia circle. 



