354 DAVENPORT ACADEMY OF SCIENCES. 



county" (E. Irons, Iowa Orn., i, i, 1894, pp. 13-14); "common 

 migrant; scarce summer resident" (Trostler). Poweshiek — 

 "breeds rarely" {h- Jones). Van Buren — "common summer res- 

 ident, nesting two or three feet from ground, usually in a hazel 

 thicket" (W. G. Savage). Tama — B. H. Bailey shot one specimen 

 June 22, 1902, near Traer. Kossuth — "common summer resi- 

 nent; have secured the nest and eggs several times and have three 

 sets now in my collection, all taken in Kossuth" (Bingaman). 

 The species is an abundant migrant in Winnebago and Hancock 

 counties, but I have not observed it during the breeding season; 

 shot a juvenile female August 15, 1896, at Forest City. 



304. (660). Dcndroicacastancai^Ws.). Bay-breasted Warbler. 



The Bay-breasted Warbler is a rather rare migrant in spring 

 and fall in eastern Iowa, the only western Iowa record being a 

 single specimen observed at Spencer by Paul C. Wood, April 21, 

 1896 (Iowa Orn., ii, 4, 1896, p. 86). 



County records: Blackhawk — "rare migrant' ' (Salisbury, Peck); 

 L,ee (Praeger); Poweshiek (L. Jones); Johnson — May 15, on Uni- 

 versity campus (Anderson); Scott — "seen only on May 9 and 26, 

 1888" (Wilson); Van Buren (Wm. Savage); Winneshiek (Smith). 



'In Jackson county H. J. Giddings reports the Bay-breasted 

 Warbler as "a rather common migrant. This species varies much 

 in number in different seasons; a few times I have found it to be 

 as common as the Chestnut-sided" (Iowa Orn., iii, i, 1897, P- 8). 



(305)- (661). Dcndroica striata (Forst.). Black-poll Warbler. 



The Black-poll Warbler is a common migrant in nearly all local- 

 ities reported from. It is usually the latest Warbler to migrate, 

 arriving in southern Iowa from the first to the middle of May and 

 sometimes tarrying in the state until the first week in June; very 

 seldom seen in the fall. M. E. Peck says: "No other Warbler 

 has so extreme a range of migration — its limits are the equator 

 and the Arctic Ocean. Economically, the Black-poll is the most 

 important of the family. It arrives just when the trees are 

 swarming with larvae, and its usefulness in destroying these can 

 hardly be overestimated" (Iowa Orn., ii, 3, 1896, pp. 62-63). It 

 has been reported once as breeding in Iowa, a nest found in Dal- 

 las county. May 20, 1894, by Mr. Fred Hamlin. The nest was 

 ten inches from the ground in a small thorn-bush, one rod from 



