Widmann — A Preliminary Catalog of the Birds of Missouri. 219 



northward; migrating over Mississippi Valley and Gulf States 

 to South Carolina, Georgia and Florida; rare east of AUeghanies 

 north of Virginia. Winters in southern United States, but 

 chiefly in northeastern Mexico. 



In western Missouri a regular and common transient visitant. 

 It is reported so by Dr. Ahen, who met with it in May, 1871, 

 at Fort Leavenworth; by W. E. D. Scott who found it next 

 to H. pinus, the most common of the genus, April 27 to May 

 15, 1874, at Warrensburg. Mr. Chas. W. Tindall reports it as 

 common at Independence, April 29, 1898, and April 30, 1899. 

 Mr. H. Nehrling's record of April 19, 1884, is the earliest date 

 for spring arrival in Missouri. The occurrence of the species 

 in eastern Missouri is less regular both in time and numbers. 

 Quite common in some seasons as early as April 20 and 22, in 

 others it is not seen before the 28 or 29. May 10 is the latest 

 at St. Louis; in most years not seen after May 5. Its presence 

 in fall extends over a period of seven weeks from September 9 

 to October 26, but it is never numerous at any time. Neither 

 Mr. Currier nor Mr. Praeger met with the species at Keokuk, 

 but Mr. Chas. K. Worthen mentions it in his list of the birds 

 of Warsaw, 111. 



647. Helminthophila peregrina (Wils.). Tennessee Warbler. 



Sylvia peregrina. Vermivora -peregrina. Helinaia peregrina. Helmintho- 

 phaga peregrina. Sylvicola niissouriensis. 



Geog. Dist. — Eastern North America, north to Hudson Bay, 

 Slave Lake and Alaska; breeds from northern New York, 

 northern New England, Quebec, Ontario, Manitoba, eastern 

 Colorado northward and migrates chiefly through Mississippi 

 Valley and Atlantic side of Mexico and Central America to 

 northern South America. 



In Missouri by far the commonest species of its genus and the 

 most regular in migration; it outnumbers all other Helmin- 

 thophilae put together and occurs in the west as well as in the 

 east; in the southeast and the Ozarks as often as in the flood 

 plains and the prairie region. At St. Louis it makes its first 

 appearance between April 25 and 28, rarely a day earlier or 

 later. It is in greatest abundance between April 30 and May 

 11, when it may be heard or seen most anywhere. After the 

 middle of May it is scarce except in cold Mays, when it remains 

 longer, as late as May 22 and 24, once even to May 29 and in 



