ANDERSON — THE BIRDS OF IOWA. 355 



bank of Raccoon River; contained four eggs; female captured; 

 male not seen" (Iowa Orn., i, i, 1894, p. 14). During migration 

 the Black-poll frequents the lower trees in thick woodland. 



306. (662). De7idroica blackbuniia; (Gmel.). Blackburnian War- 

 bler. 



The Orange-throated or Blackburnian Warbler is a tolerably 

 common spring and fall migrant in eastern Iowa. It was not re- 

 ported from the western part of the state, although it has been 

 reported from Nebraska (Omaha and West Point, by Bruner), and a 

 specimen was taken by J. J. Audubon, May 12, 1843, near Decatur, 

 Burt county, Nebraska, a little above the mouth of the Little 

 Sioux River (Journals, i, 485). The species appears to be some- 

 what irregular in numbers, some seasons being quite common, 

 rare during others. It has been reported in Iowa from the first 

 week of May until Maj^ 30. I have taken specimens in Winne- 

 bago county from August 17 to August 21, 1896, when they were 

 very numerous; and also rarely in May, both in John.son and Win- 

 nebago counties. 



307.. (663a). Dendroica dominica albilora Ridgway. S3'camore 

 Warbler. 

 The Yellow-throated Warbler {D. dominica) was listed as an 

 Iowa species by J. A. Allen (White's Geol. of Iowa, ii, 1870, p. 

 421), but it appears from the range of the two varieties that all 

 low^a or central Mississippi Valley records should be referred to 

 D. d. albilora. The species is of southern distribution. There 

 are three records from southern Wisconsin (Kumlien and Hollis- 

 ter. Birds of Wis., 1903, p. 113), and I have found onlj^ one defi- 

 nite Iowa record. I have examined a specimen from the collec- 

 tion of Mr. George H. Berry of Cedar Rapids, which he shot at 

 Keokuk (Lee county), Iowa, May 4, 1888. It measured: Length 

 4.75; wing 2.69; tail 2.13; bill .50; agrees with Coues' Key and 

 Ridgway's Manual in most particulars; superciliary stripe from 

 base of bill to a point just anterior to eye, bright yellow, and very 

 narrow; from a point just anterior to eye to about oiijp-fourth 

 inch behind eye pure white and broader (typical of dominica, 

 Ridgway); "with yellow of chin cut off from bill by white" (typ- 

 ical of albilora, Coues [except at base, where there is the narrow- 

 est possible edging of white feathers]. Mr. Berry says there was 



