172 \^oomi% on Birds of Chester County, South Carolina. [April 



Considered from the standpoint of the widened diagnosis of the 'Manual 

 of N. A. Birds,' tlie prevailing Water-thrush of this locality is 7io/'f;/)/7/5. 

 With the exclusion of a single example, all that have been taken are of 

 medium and small size. True novehoracensis is a rara avis in this section. 

 Intermediates are more common. Some of them are so fairly midway 

 between the two forms as to render impracticable their being assigned to 

 either. Migrant only ; April 28-May 2S; September 1-29. Rather common. 



19S. Seiurus motacilla. Louisi.\na Water-thrush. — This species 

 has been taken only upon three occasions, viz., Aug. 10, 1887; July 25 

 and 31, iSSS. 



42. Geothlypis formosa. Kentucky Warbler. — It is a periodic 

 visitant at the close of April and early in May, and again during the first 

 part of September; but it is rather rare. Sings with effect in spring. 



199. Geothlypis agilis. Connecticut Warbler. — The general rarity 

 of spring specimens, especially enhances the value of the solitary one (a 

 male) in my collection, labelled Maj' 10, 1889. 



146. Sylvania mitrata. Hooded Warbler. — Up to the present the 

 Hooded Warbler has not been discovered breeding, but it is expected that 

 a thorough exploration of the river region will establish the fact. It is 

 quite common during both migrations, having been observed from April 

 16 to May 6, and Aug. 6 to Oct. 17. The last date is exceptionally late, 

 the season properly closing with September. While en route to their 

 breeding grounds, they sing. 



200. Sylvania pusilla. Wilson's Warbler. — In all these years but a 

 single individual, shot May 10, 1S87, has fallen to my gun. 



45. Sylvania canadensis. Canadian Warbler. — Rai-e or casual in 

 fall (September) ; not uncommon at times in spring (first two weeks of 

 May), when they render themselves conspicuous by their frequent sing- 

 ing. 



46. Setophaga ruticilla. American Redstart. — Between my latest 

 sping (May 21) and earliest summer (July 10) record, there is a gap of 

 but seven weeks. The July birds are few in number, and usually appear 

 during the last week of the month. Through August decided movements 

 take place, and about the middle of September the full tide reaches here. 

 Then for a while they are among the most abundant of sjdvan inhabitants 

 By the first of October a considerable decline has been witnessed, al- 

 though they are still common. After the third week, at farthest, they are 

 no longer seen. From about the second week of April (April 10, first) 

 through the. third week of May, they have been met with in spring. 

 During this vernal progress they become very common, and are not in- 

 frequent musicians. 



20. Thryothorus bewickii. Bewick's Wren. — Breeds very sparingly. 

 They are conspicuously common (perhaps more so in certain seasons 

 than in others) during their migrations, which occur, mainly, in the 

 hitter part of September, in October, Februarj' (particularly the last 

 portion) and March. In December and January, in some years, they 



