(16) spr:ng m:grat:on notes of the Chicago area 
l^i la'^tS 1916 1917 1918 1919 192» 
~"\rrc 15 A.. !r^r"T'i^^ ... . 
Very common migrant. 
676. Louisiana Waterthrush Seiurus motaciUa 
May 15 May 13 - May 18 - 
Rare summer resident. 
677. Kentucky Warbler Opororuis formosus ^^^^ ^ 
, , May 16 - - ' 
Rare visitant from the south. 
678. Connecticut Warbler Oporornls agilis 
May 16 May 4 May 18 May 6 May IB May 22 May 15 
Tolerably common migrant. 
Fairly common migrant. 
,81. Maryland Yellowthroat ^^'^r^TavT^May 4 May 2 
May 11 Apr. 28 May 8 May 2 May 11 May 7 May 4 may ^ 
Comm-on summer resident. 
6 8 3 Yellow-breasted Chat Icteria virens virens 
May 18 
Uncommon summer resident. 
z5or: Warbler Wilsonia pusilla pusilla 
~ May 10 May 12 May 12 May 11 May 11 May IT May 10 
Fairly common migrant. 
-, T^i^v. Wilsonia canadensis 
lt:T"lo May 14 May 7^ May 16 May IS May IS May 10 
Fairly common migrant. 
fiC7 Rpd^t rt Setophaga ruticilla 
May 2 Apr. 27 Apr. 25 May 6 May 14 May 3 May 17 May 6 
Abundant migrant; not uncommon summer resident. 
r^ ^v.- A Dumetella carolinensis 
704. Catbird 1x1^^.4 Anv 29 
May 3 Apr. 27 Apr. 29 Apr, 29 May 11 May 12 May 4 Apr. 2J 
Common summer resident. 
705. Brown Thrasher Toxostoma rufum 
Apr 20 Apr. 18 Apr. 19 Apr. 15 Apr. 18 Apr .24 Apr. 12 Apr. 18 
Common summer resident; one record for the winter. 
718 Carolina Wren Thryothorus ludovicianus ludovicianus 
Mar. 24 Jan. 1 Mar. 31 
Uncommon permanent resident, on the increase in numbers. 
719. Bewick's Wren Thryomanes bewicki bewicki 
Apr. 2 
Very rare visitant. Nelson reports one. 
7 21 House Wren Troglodytes aedon aedon 
■ Apr. 25 Apr. 2 Feb. 22 Apr. 29 Mar. 31 Apr. 2 5 May 3 Mar. 24 
Common summer resident. 
