A JRevised List of Cincinnati Birds. 189 



20. PoKZANA jAMAiCENSis, Cassin. — Little Blacl- Bail. — Partially 

 identified at Madisonville. 



21. Chaulelasmus streperus, Gray. — Gadwall Buck. — " Breeds at 

 St. iNIarv's Peservoir" (Dury). 



22. Larus makinus, Liniiiieus. — Great Black-backed Gull. 



23. Lakus atricilla, Linnseus. — L^aughing Gull. 



24. Sterna anglica, Montague. — Gull-billed Tern. 



25. Sterna hirundo, LinuiXius. — Common Tern; Sea Swallow. 



26. PoDiCEPS griseigena, var. holbollt, Coues. — Red-necked Grebe. 

 Note. — Podiceps cristatus, Latham, lias heretofore been included in 



various standard works as a bird of general distribution in North 

 America ; according to Dr. Brewer, however, there is " no authentic 

 record of the capture of a single specimen in America," and it is there- 

 fore dropped from the list of North American Birds. — See his article 

 in Bulletin Nnttall Orn. Club for April, 1878, p. 52. 



summary. 



The two hundred and fiftj^-six identified species may be approximatel}' 

 divided as follows: 



Constant residents, . . . . . . . .27 



Summer residents, . . . . . .... 62 



Winter visitants, ......... 10 



Regular migrants, ........ 82 



Irregular migrants, . . . . . . . .37 



Casual visitants, ........ 31 



Species that have disappeared within fort}- 3'ears, . ... 7 



Total, 256 



Adding the twenty-six un-identified species to the aggregate number 

 of irregular and casual visitants, where they would properly belong if 

 identified, we have a total of ninety-four, or exactly one-third of the 

 total number of species in both lists; apparently a remarkable pro- 

 portion of "casuals," and one probably without a parallel in any other 

 class of vertebrates. It is not by any means peculiar, however, to this 

 locality or State, as may be seen by consulting the List of Mas- 

 sachusetts Birds by Allen,^ or that of the Birds of Connecticut b}^ 

 Merriam,^ and other North American Lists, in which about the 



1 A List of the Birds of Massachusetts, with Annotations, by J. A. Allen Bulletin of the 

 Esxex InstiUite, Vol. X., pp. 3-37; April, 1878. 



2 A Review of the Birds of Connecticut, with Remarks on their Habits, by C. Hart. 

 Merriam. Trans. Conn. Academy, Vol. IV., 1877. 



