212 Trans. Acad. Sci. of St. Louis. 



Missouri and Kansas to northwestern Indiana, northern Illinois, 

 southern Minnesota and South Dakota. Winters in Mexico. 



In Missouri a fairly common summer resident in all prairie 

 districts and the Ozark border east to St. Louis and northward, 

 abundant at Keokuk (E. S. Currier). This is the last of the 

 Vireos to arrive in spring. At St. Louis, and in central Missouri 

 generally, the first may be expected between April 27 and 29, 

 sometimes a day or two earlier, as April 26, 1882, and April 25, 

 1883. At Independence it was noted by Mr. Tindall April 27, 

 1900, and April 30, 1899. At Warrensburg May 5, 1874, by 

 W. E. D. Scott. Audubon met with Bell's Vireo May 6, 1843, 

 in the region of St. Joseph. Its arrival is reported May 4, 1902, 

 at Jasper by Mr. Savage, and May 5, 1885 and 1886, at Mt. Car- 

 mel by Mrs. Musick. Mr. Currier's dates vary between April 30, 

 1895, and May 9, 1899, at Keokuk. The bulk of the species 

 does not come to St. Louis before the first week of May and a 

 week later to Keokuk. It sings almost as long as it is with 

 us, even through August. Last day of its song and presence at 

 St. Louis is September 22, 1905, and this seems to be the time of 

 departure from its breeding grounds generally. Last at St. 

 Joseph, September 19, 1894, S. S. Wilson; at Jasper, September 

 16, 1901, and September 20, 1902; at Monteer, Shannon Co., 

 September 5, 1903, W. G. Savage. 



Family Mniotiltidae. Wood Warblers. 

 *636. Mniotilta varia (Linn.). Black and White Warbler. 



Certhia varia. Sylvia varia. Certhia maculata. Sylvicola varia. Mnio- 

 tilta borealis. Mniotilta varia borealis. Black and White Creeping Warb- 

 ler. 



Geog. Dist. — Eastern North America, north to the upper Mac- 

 kenzie Valley, Hudson Bay, Anticosti and Newfoundland; west 

 to Alberta, central Nebraska, eastern Texas. Breeds from Vir- 

 ginia, Tennessee, Louisiana and Texas northward, and winters 

 from the Gulf States southward throughout the West Indies, 

 Mexico, Central America to Colombia and Venezuela. 



In Missouri a common transient visitant and a fairly common 

 summer resident in all wooded regions, both in low and high 

 localities, on the islands in the swamps of the southeast, as well 

 as throughout the valleys of the Ozarks and in the timber of 

 the Ozark border and prairie region. This is one of the first 



