316 Trans. Acad. Sci. of St. Louis. 
This warbler is found in all wooded sections of the county, 
including the southern and eastern suburbs of the city. 
VERMIVORA CELATA CELATA (Say). Orange-crowned Warbler. 
Not uncommon migrant. 
‘The Orange-crowned Warbler arrives during the last week 
of April (April 17, 1916, earliest) and is present until the mid- 
dle of May (May 20, 1916, latest). Its passage through the 
county is never marked by any great numbers. The earliest 
fall arrivals are noted about the middle of September (Sept. 
14, 1903, earliest) and individuals are present until the middle 
of October. 
On account of the lack of any bold markings the Orange- 
crowned Warbler is difficult to distinguish in the field and is 
often overlooked. It frequents low thick bushes more than 
other species. The bird may generally be discovered by its 
song, which is feeble and sounds like an unsuccessful effort to 
keep on one key. It may be looked for in the timbered bottoms 
and bluff regions of the Missouri River and in the upper Blue 
Valley in the Swope Park and Dodson districts, and in thickets 
even in the residence district in the city. 
VERMIVORA PEREGRINA ( Wilson). Tennessee Warbler. 
Very common migrant. 
With the possible exception of the Myrtle, the Tennessee 
Warbler is our commonest warbler. The birds first arrive dur- 
ing the last few days of April and become most numerous during 
the first ten days of May. Stragglers are sometimes seen = 
late as May 25th (1916, three). The southward movement 18 
noticeable in late September and the first half of October. 
At the height of migration the nervous staccato song of this 
species resounds from every tree, even in the outer residence 
section of the city. 
COMPSOTHLYPIS AMERICANA USNEAE Brewster. Northern Parula 
Warbler. 
Very common migrant and not uncommon summer resident. 
The Parula Warbler arrives from the 16th to 28th of April 
and leaves during the last half of September. During the first 
week or ten days of May the spring migration is at its height 
and the tall timber of the bottom lands fairly teems with these 
buzzing and persistent songsters. They are somewhat gaudily 
