14 



those known being in Wayne, Wyoming, and barren Counties. 



201. Butorides virescens virescens (Linn.). Little Green 

 Heron . 



This small Heron is generally distributed thruout 

 the whole state, but scarce in the mountainous and wooded 

 sections of the Canadian fauna. It is very common in the 

 counties lying within the Carolinian and Alleghanian fauna. 



202. Nycticorax nycticorax naevius ( Bodd . ) . Black-crowned 

 Night Heron. 



The Night Heron is locally a common breeder thru 

 sections of the Carol inoan and Alleghanian fauna. It does 

 not appear to nest in the Canadian life zone. Colonies 

 occur in Delaware, Chester, Montgomery, Bucks, Berks, 

 Lancaster, and York Counties, tho the birds are yearly 

 becoming more rare, and many colonies have recently been 

 exterminated. It does not breed in the central and north- 

 ern parts of the state, while investigation in Warren, 

 Green, Washington, and Erie Counties has failed to reveal 

 it. 



