LIMICOLA. val 
93. (243a.) PELIDNA ALPINA PACIFICA (Cous). 210. 
Red-backed Sandpiper. 
Synonyms: Tringa alpina var. americana, Pelidna alpina amer- 
icana, P. pacifica, Tringa schinzii. 
American Dunlin, Black-breast, Black-bellied Sandpiper, Ox 
Bird. 
Kirtland, Ohio Geol. Surv., 1838, 165, 185. 
There has apparently been a considerable decrease in the 
numbers of this species since Dr. Wheaton prepared his 
catalogue. It is nowhere given as common in the state. It 
is rare in Lorain county at any time of year, but has been 
recorded more often in the autumn than during the spring 
migrations. It is strictly a migrant across the state. 
Migration dates are too few to be of service in determin- 
ing the time of migration, but they indicate a northward 
movement during late April or early May, continuing well 
toward the close of May; and a return late in September 
or early October. 
94. (246.) ErREUNETES PUSILLUS (Linn.). 211. 
Semipalmated Sandpiper. 
Synonyms: Ereunetes petrificatus, Tringa pusilla. 
Peep. 
Wheaton, Ohio Agri. Report, 1860, 369. 
This and the Least Sandpiper might easily be confused 
by any one not familiar with the two species. The differ- 
ence in size would hardly be apparent unless the birds were 
ear together. It is reported generally as not common dur- 
mg the migrations, but may be in some localities during fa- 
vorable seasons. They often mingle with the Least Sand- 
pipers in the fall at the common feeding-grounds of the 
shore birds. Both species, with many others, were recorded 
at the lagoon on Middle Bass Island during the first week of 
August, 1901, by Mr. Dawson and myself. 
They appear to migrate somewhat earlier than the Least 
Sandpipers, in spring, but may return with them. 
