KKVES AND WILLIAMS BIRDS OF IOWA. 153 



week in September. It frequents rather open woodland, and seems 

 to be extremely partial to the hawthorn trees. Its plumage — greenish- 

 yellow, or olive, is nearly the same hue as that of the young foliage of 

 the hawthorn, so that the birds are likely to be passed by unnoticed, 

 unless especially sought for. 



[B 185, R 87, C [09, l 647.I 

 Helminthophila peregrina (Wils.). Tennessee Warbler. Migra- 

 tory; abundant. Arrives the first, and sojourns until the third week in 

 May, passing southward again in September. It is an inconspicuous 

 little species, frequenting the tops of trees, and often associating with 

 the brotherly-love vireo. 



Genus COMPSOTHLYPIS Cabanis. 

 [B 168, R 88, C 93, U 648.] 

 Compsothlypis americana (Linn.). Parula Warbler. Rather com- 

 mon; observed only on migrations. Arrives the first week in May, and 

 passes southward the second week in September. 



Genus DENDROICA Gray. 

 Subgenus PERISSOGLOSSA Baikd. 



[B 206, R 90, C 126, U 650.] 

 Dendroica tigrina (Gmel.). Cape May Warbler. Migratory; not 

 common. Arrives the second week in May. and returns in September. 

 A specimen was taken at Iowa City, November 27th, 1886. 



Subgenus DENDROICA Gray. 



[B 203, R93, C in, U652.] 

 Dendroica cestiva (Gmel.). Yellow Warbler. Summer resident; 

 abundant. Arrives the first of May, and departs the first of September. 

 Nests about the third week in May, in low bushes. Eggs, four or five 

 in number. As many as three eggs of the cow-bird have been taken 

 from a single nest of this species. 



[B 193, R 94. C 117, I" ^54.] 

 Dendroica ccerulcscens (Gmel.). Black -throated Blue Warbler. 

 Migratory; not common. Mr. Trippe also mentions it as having been 

 seen a few times in the spring, in Mahaska County. 



[B 194, R 95, C 119, U 655.] 

 Dendroica coronata (Linn.). Myrtle Warbler. Abundant spring 

 and fall migrant, appearing about the middle of April, and remaining 

 three or four weeks; in the fall its sojourn is shorter — from the middle 

 to the last of October. It is one of the first of the warblers to put in 

 its appearance in the spring, and may be seen at almost any place in 

 woodlands during its stay. 



[Proo. D. A. N. S., Vol. Vj. 20 [November 12, 1888.] 



