590 Annals of the Carnegie Museum. 



of the species, from the extensive tracts of rushes and marsh grasses in 

 which it delights. It was also encountered in the marshes along the 

 bay shore at the western part of the Peninsula, and at the mouth of 

 Mill Creek, but was not found about Long or Cranberry Ponds, the 

 conditions there not being favorable. During the migrations it is said 

 to occur occasionally on the mainland. October 6 was the latest fall 

 date on record, although it may possibly have stayed somewhat longer. 

 In 1893 it was first seen on May 3 (Bacon). 



223. Certhia familiaris americana. Brown Creeper. 



A fairly common migrant in spring and fall, and in all probability 

 a winter resident in small numbers. Mr. Sennett is quoted as saying 

 that it is sometimes seen during mild winters (Warren, Birds of Petui- 

 .sylvania, 1890, 314). It has been found in migration in early April 

 (April 8, 1S75, Sennett; April 8, 1893, Bacon), but none were no- 

 ticed in 1900 until April 18, while on April 24 a flight was encoun- 

 tered in the high woods north of Long Pond. There were dozens of 

 them in the trees, their faint chirps being heard on every hand, and 

 some were even singing. May 7 the last was seen. In the fall Sep- 

 tember 14 was the first date, and October 16 the last, although the 

 species doubtless remained later, as above intimated. 



224. Sitta carolinensis. White-breasted Nuthatch. 



A permanent resident, well represented at all seasons of the year, 

 fre(iuenting the wooded portions of the mainland and Peninsula, often 

 in company with other species of like haunts and habits. 



225. Sitta canadensis. Red-breasted Nuihatch. 



Fairly common, according to our observations, during the spring 

 migration, less numerous in the fall. April 19, 1900, one was shot 

 on the wooded ridge southeast of the city, but none were noted on 

 the Peninsula until May 2. It was observed as late as May 19, almost 

 justifying the suspicion that it breeds. In the fall it was recorded on 

 September 20, 21, and 26. It was met with in the woodland, often 

 quite low down, and usually accompanied by such birds as kinglets, 

 chickadees, Brown Creepers and warblers. Other observers seem to 

 have found it rather com.mon in the fall. Thus, Dr. Warren mentions 

 having found this species "quite plentiful in October and the early 

 part of November [1889] in Erie county." {Binh of Pennsylvania, 

 1890, 316.) There are specimens in Mr. Sennett's collection taken 

 at intervals from September 22 to October 29, 1888. 



