52 

 467. Empidonax minimus W. M. and S. F. Baird . Least Flycatcher, 



The Least Flycatcher "breeds yearly and somewhat 

 frequently in all of the counties lying within the Allegha- 

 nian and Canadian faunas and rarely in the Carolinian. 

 Mr. S. N. Rhoads records one nest in Delaware County, June 

 1, 1881 (B. N. 0. C. 1382), while the author has noted it 

 several times as an infrequent breeder in southern Montgomery 

 County (Auk, Oct. 1908) and in Bucke County about Newtown. 

 In Berks County it becomes very common, and Mr. Leibelsperger 

 has taken a number of sets. In Center and Huntingdon 

 Counties, it is regular but sc&rce as a breeder. Farther 

 north in practically all the counties having pronounced 

 Alleghanian and Canadina faunas, it is a common breeder. 



474b. Octocoris alpestris praticola Rensh . Prairie Horned 

 Lark. 



Until quite recently, classed as one of the rarest 

 of our breeding birds, the Prairie Horned Lark has now spread 

 over nearly the entire western half of the state and is 

 steadily pressing eastward and southward. Mr. Stone records 

 pairs evidently nesting in Bradford and Lycoming Counties 

 in 1892 (Birds of Eastern Pennsylvania and New Jersey). 

 At the present time 4t is quite common in Qreen County, where 

 Mr. Dickey has taken several sets; in Warren County, where 

 Mr. Simpson has found several nests; in Center County, where 

 the young have been found by the author; and in Luzerne 



