BIHDS OF PENNSYLVANIA. 297 



and al trough occurring in nearly all parts of the state either as a native 

 or during- migrations it is reported to be quite rare in many of the 

 mountainous districts. Prof. A. Kock has never met with it in Lycom- 

 ing county and Dr. Yan Fleet has observed it in Clinton, Clearfield and 

 Northumberland counties only as a spring and autumnal sojourner. At 

 all times, other than when migrating, these birds .are found near water, 

 such as small streams, ponds, etc., in secluded forests and wooded 

 thickets. Feeds on different forms of insect life and occasionally on 

 berries. 



Geothlypis agilis (WILS ). 



Connecticut Warbler. 



DESCRIPTION. 



Length about 5^ ; extent about 9 inches ; maxilla brownish, lower mandible paler ; 

 upper parts olive-green ; sides of head slightly grayish or ashy ; chin, throat and 

 breast grayish-ashy (in a specimen before me, taken in fall, the chin, throat and 

 breast are more or less edged with rusty), sides very similar to back but paler ; rest 

 of undv3r parts including lower tail-coverts yellow ; whitish ring around eye. 



Habitat. Eastern North America, breeding north of the United States. "Winter 

 residence unknown." 



The Connecticut Warbler seems to have been met with by but few 

 naturalists or collectors in the western or central portions of Pennsyl- 

 vania. The writer shot one of these birds in September in Erie county, 

 where Mr. Sennett has observed this bird as a migrant, not common. 

 Dr. Van Fleet has found it in Clinton county as a rare migrant, and 

 Prof. Eoddy reports it as migratory in Perry and Lancaster counties. 

 The writer has never seen a Connecticut Warbler anywhere in Pennsyl- 

 vania during the spring migration, but in the fall, usually in Septem- 

 ber, this species has been found to be quite common in bushy swamps 

 and weedy places in the vicinity of streams and ponds in southeastern 

 parts of the State. It is a quiet and secretive bird and as it frequents, 

 almost constantly, the ground in thick weeds, grasses and bushes it fre- 

 quently escapes observation. Feeds on beetles, larvae, spiders, snails 

 and sometimes on small seeds and berries. This bird " breeds in Mani- 

 toba * and probably elsewhere in the interior of British America "- 

 (Ridgway). 



Geothlypis Philadelphia (Wiis.). 



Mourning Warbler. 



DESCRIPTION. 



" Wings but little longer than the tail, reaching but little beyond its base. 



"Adult male. Head and neck all round, with throat forepart of breast, ash-gray, 

 paler beneath. The feathers of the chin, throat and fore breast in reality black, but 

 with narrow ashy margins more or less concealing the black, except on the breast. 



See article in Auk., April, 1884. pages 192-193, by Mr. Ernest E. T. Seton. 



