578 Annals of the Carnegie Museum. 



than one case three individuals were seen to enter the same opening 

 in rapid succession. Of ten specimens shot indiscriminately all but 

 one proved to be males. Mr. Simpson's first record for this swallow- 

 in 1902 was for April 26. 



179. Stelgidopteryx serripennis. Rough-winged Swallow. 

 According to Mr. Simpson, some were seen with other swallows 



during the storm of April 26, 1902. Whether these birds were blown 

 out of their course, or whether the species is an occasional summer 

 resident here can only be conjectured. 



[Ampelis garrulus. Northern Waxwing. 



Here, if anywhere in the State, should this species be detected as a casual winter 

 visitant.] 



180. Ampelis cedrorum. Cedar Waxwing. 



A permanent resident the year round, nesting in every orchard: 

 When seen in winter it is in good-sized flocks, haunting mountain-ash 

 trees. Such flocks have been rather rare, however, Mr. Bacon adds, 

 in the last five years. On the Peninsula it is quite numerous, and is 

 often seen about wild cherry trees in the fall months. 



181. Lanius borealis. Northern Shrike. 



"A winter resident, but more apt to be met with in late fall and 

 early spring than through the colder months. I scarcely ever see 

 more than a half dozen in any one year. It has been recorded upon 

 the following dates in winter: February 5, 1888; December 24, 

 1893; January 21, 1894. September 21, 1892, is my earliest fall 

 record, and March 18, 1893, the latest date in spring." (Bacon.) 



182. Lanius ludovicianus migrans. Migrant Shrike. 



Lanius ludovicianus migrans, Wm. Palmer, Auk, XV, 1 898, 248. 



One of the characteristic birds of this region, where it is a common 

 summer resident on the mainland, and occasional during migrations on 

 the Peninsula, where, in 1900, it was first seen April 3, while single 

 birds, presumably of this species, were noted October 13, 17, and 18. 

 Mr. Bacon says that it starts nest-building immediately upon its 

 arrival, and that he has found the eggs as early as April 15 (1890). 

 Mr. A. M. Howes reports having secured three sets of six eggs each 

 on April 21, 1900. Dr. Warren gives a detailed account {Birds of 

 Pennsylvania, 1890, 261-262) of the nesting of this species here as 

 observed by Mr. Seunett and himself on May 20 and 21, 1889, at 

 which date most of the nests contained young. The nests are almost 

 invariably built in thorn or wild crab-apple trees in more or less open 



