276 



Harlow, N^otes on Birds of Eastern Pennsylvania. 



TAuk 

 Ljuly 



Fetnales: 



Wing. 



Tail. 



Cul- 

 men 

 from 

 cere. 



Tar- 

 sus. 



Middle 

 toe. 



4 adults from eastern U. S 



1' adult from Mirador, Vera Cruz, Mex. 

 1' adult Chitra, Veragua 



2 adults from Cuba 



4 adults from St. Vincent 



1 adult from Dominica 



1 immature, marked male but probably 



female, Granada 



1 immature from Tobago 



3 immatures from Antigua 



282 

 293 

 280 

 272 

 265 

 263 



276 

 271 

 252 



160.8 



167 



163.5 



160.8 



153.9 



154 



163 

 171 

 149.2 



19.5 



20 



20.5 

 18.6 

 20 



19.5 



18.7 



58.5 



61.5 



64 



62 



56.2 



57 



55.5 



60 



57.7 



32.7 

 33.5 

 30.5 

 33.3 

 32.5 

 32.5 



33.5 



30 



31 



RECENT NOTES ON BIRDS OF EASTERN PENN- 

 SYLVANIA. 



BY RICHARD C. HARLOW. 



The ever changing conditions which are so rapidly encompassing 

 large tracts of our commonwealth naturally necessitate faunal 

 changes. The instinct of faunal distribution in many cases is 

 sacrificed to the greater demand for congenial environment. In 

 this respect different localities affect different divisions of bird life. 

 Among the mountains of Pennsylvania, for instance, we find the 

 element of the Canadian Fauna in the shape of numerous Warblers, 

 Thrushes and Flycatchers steadily decreasing while about Phila- 

 delphia it is the Water Birds that have to bear the weight of the 

 onslaught. The cutting off of the large timber has affected the 

 Herons ; the draining and filling up of the swampy areas has com- 

 pelled the Rails to seek other localities, but the Land Birds live on, 

 for the greater part unmolested. 



Since Mr. Stone's valuable work on the 'Birds of Eastern Penn- 



' Unsexed. 



