552 Annals of the Carnegie Museum. 



authority as breeding sparingly in Erie County {Birds of Pennsylvania, 

 1890, m). Mr. Sennett had three males in his collection, two of 

 which are now in the Carnegie Museum ; they bear dates of April 3, 

 1875, March 13, 1876, and April 11, 1876, respectively. 



88. Zenaidura macroura. Mourning Dove. 



Common as a summer resident, arriving, according to Mr. Bacon's 

 experience, from March 18 (1898) to 25 (1893), and staying through 

 September. He adds further : ' ' They are also occasionally seen in 

 late fall and even in winter (January 5, 1891). Their abundance is 

 extremely variable from year to year. Thus, in the summer of 1891 

 they were exceedingly numerous, and I remember seeing as many as 

 five hundred in a single afternoon. Ordinarily, however, it is seldom 

 that more than a half dozen will be seen in an afternoon's tramp 

 through the country. Again, I have found them quite abundant early 

 in July, seemingly all young birds, while two weeks later I could 

 scarcely find a Dove in an afternoon's hunt. Certain fields always 

 have a special attraction for Doves, and on one dry ridge not far from 

 the city I can always start a dozen or two in season, which must, how- 

 ever, be transients, as I never see as many there later on. This 

 species does not occur on the Peninsula as a breeder, ' ' the birds seen 

 there being visitors from the mainland. A few were noticed there in 

 the spring of 1900, first on April 2, and thereafter on several occasions 

 until May 2. It was usually found in pairs, haunting the more open 

 places. 



89. Circus hudsonius. Marsh Hawk. 



A summer resident, breeding, Mr. Bacon feels quite positive, on the 

 Peninsula, where it has been seen through the nesting season. It is 

 often seen on the mainland also, and is in fact the most common hawk 

 in this section, save the Sparrow Hawk alone. It has not been observed 

 in winter, but has been noted as early as March 27(1901). In 1 900 it 

 was occasionally seen in the spring from April 10 to May 3, and in 

 the fall from August 26 to October 3. An immature example shot on 

 Big Pond September 29 was the only one secured. 



90. Accipiter velox. Sharp-shinned Hawk. 



This hawk is in all probability a summer resident, although so far 

 it has not been certainly detected during the breeding season. It is 

 not uncommon, however, during the Spring and fall migrations, es- 

 pecially at the former season. In 1900 the earliest record was for 



