ANDERSON — THE BIRDS OF IOWA. 34I 



282. (626). Vij-eo philadelphicus (Cass.). Philadelphia Vireo. 

 The Philadelphia Vireo is apparently quite rare in Iowa or else 



is generally overlooked by observers, owing to its close resem- 

 blance to the Warbling Vireo. Keyes and Williams gave the 

 species as "migratory; common; arriving the second week in 

 May. It first appears in scattered companies, moving in leisurely 

 flights through the tops of the trees along the water courses, and 

 associating with various species of Warblers. In the fall it ap- 

 pears about the first of September" (Birds of Iowa, 1889, p. 150). 

 County records: Jackson — "Mr. Giddings thinks it may breed 

 in Jackson county — noted three during breeding season ; very 

 rare, seen onl}- a few times. First seen in 1895 on June i" (Iowa 

 Orn., ii, 2, 1896, p. 42). Johnson — shot one female May 20, 1904, 

 at Iowa City (Andenson). Linn — "tolerably common migrant" 

 (Berrj'). Scott — "tolerably common migrant, May 11-20, Sept. 

 21-28" (Wilson); "Mr. J. H. Brown finds it not uncommon in 

 Scott county, in some seasons a quite common migrant" (Iowa 

 Orn., ii, 2, 1896, p. 42). Woodbury — Dr. G. C. Rich sent me for 

 identification a specimen .shot by Lloyd Browm at Morningside, 

 Sioux Cit\', Iowa, May 11, 1903. Winnebago — shot a female at 

 Forest City, Aug. 31, 1901, in a small hazel thicket in a pasture 

 (Anderson). 



283. (627). Vireo gilvus (Vieill.) Warbling Vireo. 



The Warbling Vireo is a common summer resident in nearly 

 all parts of the state, arriving in the latter part of April or first 

 of Ma}', and departing early in September. It is generally a lit- 

 tle less common than the Red-eyed Vireo, which it resembles in 

 habits. Its nest is built highef than most of the Vireos, from 

 twenty to forty feet from the ground, suspended at the extremity 

 of a branch of a maple or elm tree in the door5'ard or along the 

 street, or in woodland. It is a beautiful singer. Chapman com- 

 pares it with the Red-eye: " Instead of the Red-eye's broken, 

 rambling recitation, the song of the Warbling Vireo is a firm, 

 rich, continuous warble with a singular alto undertone " (Bds. K. 

 N. A., p. 330). When the nest is approached the birds have a 

 rather harsh, squeaky, complaining note. The nest is difficult 

 to observe from the ground, being generally concealed by dense 

 foliage. On one occasion I found the Wari)ling Vireo' s nest b}' 



[Proc. D. A. S., Vol. XI.l 40 (Dec. 18, 1906.] 



