312 Trans. Acad. Sci. of St. Louis. 



later. Four to seven eggs are laid and two broods are often 

 raised. 



Family VIREONIDAE. Vireos. 



VIREOSYLVA OLIVACEA (Linn.). Red-eyed Vireo. 

 Common summer resident. 



The Red-eyed Vireo arrives regularly during the last four 

 days of April and leaves during the last week of September. It 

 is our commonest vireo and comes freely into the wooded sec- 

 tions of the city to breed. One pair even yet comes to nest in 

 a thicket on the ledge in Penn Valley Park, a few blocks from 

 thte Union Station. Red-eyed Vireos are numerous in and 

 about Swope Park, in some of the cemeteries, in the wooded 

 sections bordering the Country Club and other districts within 

 the city and along the bluffs. The nesting season begins about 

 the second week in May. 



VIREOSYLVA PHILADELPHIA Cassin. Philadelphia Vireo. 

 Rather rare migrant. 



There are but six known records of the local occurrence of 

 this vireo, all during the month of May. Two specimens have 

 been taken by Tindall on May 10, 1893, and May 8, 1898, re- 

 spectively. 



VIREOSYLVA GILVA GILVA (Vieillot). Warbling Vireo. 

 Common migrant and not uncommon summer resident. 



The Warbling Vireo rarely arrives in numbers before the 

 first week in May though singing males are occasionally heard 

 as early as the middle of April. It leaves for the south during 

 the first two weeks of September. 



During migration Warbling Vireos may be found in wooded 

 places in every part of the county but in summer they seem to 

 prefer the bluff regions and neighboring territory. They are 

 heard singing during the nesting season about Independence, 

 Courtney, Atherton and Sibley and in the Missouri and lower 

 Blue Valleys. They have been found nesting in Fairmount 

 Park. 



LANIVIREO FLAVIPRONS (Vieillot). Yellow-throated Vireo. 

 Not uncommon summer resident. 



The Yellow-throated Vireo arrives about the middle of April 

 and leaves in late September. This vireo loves damp woods and 



