356 DAVENPORT ACADEMY OF SCIENCES. 



a great wave of migration on this date, and he also took the only 

 Iowa specimen of Carolina Chickadee the same da)'. 



308. (667). Dendroica virens (Gmel.). Black-throated Green 



Warbler. 



The Black-throated Green Warbler was reported by a number 

 of observers in the eastern and central parts of the state as a tol- 

 erablj' common migrant, and by a few as rare. It is a rather late 

 migrant, B. H. Wilson giving dates of May 10-16 and September 

 4-23 in Scott county; in Winnebago county I have usually noted 

 it during the latter part of May, while it has been reported as late 

 as June 5 at Des Moines (Cooke, Bird Migr. in Miss. Val., 1884-- 

 85, p. 253). I have no records from the western part of the state, 

 although Prof. Bruner reports the species as a rare migrant in 

 the eastern third of Nebraska. The Black- throated Green War- 

 bler has not been known to breed in Iowa. 



309. (671). Dendroica vigorsi (Aud.). Pine Warbler. 



The Pine Warbler is rarely found outside of pine woods, and, 

 as a consequence, is very locally distributed in Iowa, although it 

 frequently appears in considerable numbers during migrations. 



County records: Blackhawk — "A regular but not uncom- 

 mon migrant in Blackhawk county" (Peck). Dallas — " J. E. 

 Law took one specimen Sept. 11, 1894. This species is very rare 

 in the state and was not reported by any of the other members of 

 the I. O. A." (Iowa Orn., i, i, 1894, p. 17). Jackson — ^" very 

 rare; shot a male April 17, 1896, and saw another April 24, the 

 first I have ever noted here" (Giddings). Johnson — specimen in 

 University museum, taken in spring of 1892 [May 6, 1892, K. G. 

 Decker] (Nutting, Proc. Iowa Acad. Sci., 1892). lyinn — " A 

 specimen in collection of Geo. R. Berry was taken near Cedar 

 Rapids April 11, 1902. He said that it was very common and 

 that he could have taken two hundred specimens. Berry also 

 reported that he shot a female near Cedar Rapids in July, 1903, 

 and saw the male at same time. Scott — "In spring of 1889 a 

 friend and myself obtained several specimens near Davenport, 

 and, in fact, they were not uncommon for a short time" (J. H. 

 Brown, Iowa Orn., i, 2, 1895, p. 47); " rather rare migrant, April 

 14-May 16; Sept. 21, 1889, my only fall record" (B. H. Wilson). 



