110 The Wilson Bulletin — No. 71. 



201. Compsothlypis americana vsncae. — ^Xorthern Parula Warbler. 

 It has been recorded everj^ year since 1898, except 1905, always 



in small numbers, and only once in the fall, October 7, 1907, at Ce- 

 dar Point. It is found in the higher woods, and is a frequent visitor 

 to the Oberlin College campus, well up in the large trees which 

 make the campus beautiful. It is also regular in small numbers 

 on the Cedar Point sand spit in spring. Well authenticated nest- 

 ings have been reported from various parts of the state, but there 

 are no suitable nesting habitats in this region. The median date of 

 spring arrival is May G, and of departure. May 14 ; extreme dates 

 being May 1, 1900, and May 24, 1909. 



202. Dendroica tigrina. — Cape May Warbler. 



While it is by no means common it is found regularly during the 

 spring migrations. The typical habitats on the mainland are or- 

 chards and the lower branches of shade trees on lawns. I have 

 also found it in the shrubbery of the sand spit east of the Lake 

 Laboratory. There is a good deal of variation in the dates of spring 

 arrival, probably largely owing to the scarcity of the species rather 

 than to irregularity in the actual migrations of the species. The 

 median date is May 11, and of departure. May 1C>. The extreme 

 dates are May 4, 1899. and May 21, 1907. The only fall records are 

 October 1, 190G, one immature at Oak Point, and September 23 and 

 oO, 1907, one on each date, both at Cedar Point. 



203. Dendroica acstira. — Yellow Warbler. 



Common all summer in orchards, the brushy borders of woods, and 

 the bushes which border and grow in swamps and marshes. There 

 are more individuals in the immediate vicinity of the lake shore than 

 in areas of equal extent elsewhere because suitable habitats are more 

 plentiful and of greater area there. It was common on all of the 

 larger islands, but was not found anywhere in late August, 1905. It 

 is common all summer along the whole extent of the sand spit, ex- 

 cept only the pleasure resort grounds. It also ranges out into the 

 marshes and nests in the scattering willows and button bushes 

 which have found a foothold on the few ridges near Black Channel. 

 Next to the Myrtle Warbler, this is the earliest to appear in spring. 

 The median date of arrival is April 23. The earliest date is April 

 11, 1908. The birds are seldom common after July 25, and most 

 have gone south by the middle of August. My latest record is Sep- 

 tember 13, 1907, at Cedar Point. My latest records for singing 

 birds are August G, 1898, and August 7, 1902, 



204. Dendroica cacndesccns. — Black-throated Blue Warblei*. 

 Common during the spring migrations, in small numbers in fall. 



The habitat of this warbler is the lower branches of the trees and 



