THE NATURAL HISTORY SURVEY. 165 



Dendroica virens (Gmelin). Black-throated Green Warbler. 

 Motacilla virens GMELIN, S. N., I., ii, 1788, 985. 

 Sylvia virens LATHAM, Ind. Orn., II, 1790, 537. 

 Sylvicola virens JAEDINE, ed. Wilson's Amer. Orn., I, 1832, 279. 

 Dendroica wrens BAIBD, Rep. Pacific R. R. Surv., IX, 1858, 267. 



The Black-throated Green Warbler is a common migrant, ar- 

 riving in the spring from the last of April to the last of May, 

 and returning in the fall from the fourth of September to the 

 middle of October. Mr. E. W. Nelson says:* "A few remain 

 to breed." 



The range of this Warbler covers North America east of the 

 Plains, and from the Hudson Bay region southward. It breeds 

 from the northern United States northward and southward along 

 the higher Alleghanies to eastern Tennessee, western North Caro- 

 lina and northwestern South Carolina. It winters southward to 

 the West Indies and through eastern Mexico and Central Amer- 

 ica to Panama. 



Dendroica kirtlandii Baird. Kirtland's Warbler. 



Dendrioca kirtlandii BAIBD, Rep. Pacific R. R. Surv., IX, 1858, 286. 



pi. 6. 

 Dendroica kirtlandii BAIBD, Rep. Pacific R. R. Surv., IX, 1858, 286. 



There are but two records of the taking of the very rare 

 Kirtland's Warbler within our limits. A fine specimen was cap- 

 tured in DuPage County, Illinois, on the seventh of May, 1894, 

 by Mr. B. T. Gault, and a fine male was taken at Morgan Park, 

 Illinois, on May 22, 1899, by Mr. Eliot Blackwelder. It was not 

 unitl the year 1903 that anything was known regarding either the 

 breeding range or the nesting habits of this shy Warbler. Early 

 in June of that year Mr. E. H. Frothingham, of the museum staff 

 of the University of Michigan at Ann Arbor, and Mr. T. G. Gale 

 were in Oscoda County, Michigan, fishing in the Au Sable River. 

 Mr. Frothingham, who is an experienced field ornithologist, heard 

 the song of a strange bird, which was shot, and on their return 

 to Ann Arbor was found to be the skin of a Kirtland's Warbler. 

 Mr. Charles C. Adams, Curator of the Museum, appreciating the 

 value of the discovery of this species in that locality during the 

 summer months, and believing that it nested in that vicinity com- 

 missioned Mr. Norman A. Wood to make a thorough survey in 

 the vicinity of Oscoda County, hoping that nests might be located. 

 Reaching his field of labor in Oscoda County, Mr. Wood was 



*Birds of Northeastern Illinois, Bull, of the Essex Institute, Vol. VIII, 1876, 100. 



