PASSERES MNIOTILTID^. 181 



bers, since the places where the bird now nests are numer- 

 ous enough for its purposes. True, it does not go out of the 

 taller woods to breed, but it seems to find woods enough 

 suitable for breeding places. It may be, however, that dur- 

 ing the earlier da3's it was confined to the deeper woods and 

 the rapid disappearance of them has driven many to other 

 regions. In Lorain county it is to be found in every con- 

 siderable woods, but is only common here. 



The Cerulean Warbler arrives with the warbler host, 

 about the first of May in northern Ohio, and is fairly com- 

 mon for two weeks. The departure northward of a major- 

 ity of the individuals leaves the state thinly settled with 

 Ceruleans. It passes south during the last week of Septem- 

 ber. 



252. (659.) Dendroica pensylvanica (Linn.), 44. 

 Chestnut- sided Warbler. 



Synonyms: Dendrceca pennsylvanica, Sylvia icterocephala, 

 Sylvicola icterocephala, Motacilla pennsylvanica, M. ic- 

 terocephala. 

 Quebec Warbler, Yellow-crowned Warbler. 

 Kirtland, Ohio Geol. Surv., 1838, 163, 181. 



Of all the warbler host this is to me the most interesting, 

 in its parti-colored dress and confiding ways. The day that 

 brings them is the brightest day of the season. In their 

 northward movement they are not particular about the places 

 where they feed, provided the insects are numerous and the 

 trees are not too far apart. Every year we see numbers of 

 them on the College Campus. I have seen them in the door- 

 yard, in the apple-trees, and in the deep woods among the 

 highest branches. It is common only locally, apparently. 

 Dr. Wheaton gives it as a summer resident in the north-east- 

 ern parts of the state. It is not unlikely that it still breeds 

 in the northern part of the state, but if so it has not been so 

 reported to me. None have been found in summer in Lorain 

 county. 



This is one of the warbler host which reaches Oberlin 

 about the first of May, remaining about two weeks and then 



