lilltns OF 1X1)1 AX A. 1011 



*248. (• 26) Vireo philadelphicus (Cass.). 



Philadelphia Vireo. 

 Synonyms, Philadelphia Vireo, Brotherly Love Vireo 



Adult. — Above, olive-.o-reen, the top of head gray or olive-gray; 

 a white stripe over eye, hut no dusky line above it. Below, greenish- 

 yellow; iris, dark-brown. Immature. — Browner above. The exten- 

 sive yellow below and the absence of the dusky line above the stripe 

 over the eye serve to distinguisli this species. 



Details of structure of Philadelphia Vireo. Natural size. 



Length, 4.75-5.40; wing, 3.50-2.75; tail, 1.90-2.20. 



Eange. — Eastern North America, from Panama to Assiniboia and 

 Hudson Bay. Breeds from eastern Nebraska, central Indiana, New 

 Hampshire and Maine, north. Winters in Central America. 



Nest, pensile, suspended from forked limb, eight to ten feet from 

 ground; of fine grass and birch bark. Bggs, 4; no apparent difference 

 from those of V. oUvaceus (Seaton, The Auk, Vol. IL, 1885, p. 305). 



The Philadelphia Vireo is generally a rare migrant, but in the 

 northwestern part of the State, near Lake Michigan, it is sometimes 

 rather common. It is also a rare summer resident. Mr. E. W. Nel- 

 son found two pairs of these birds in a dense willow thicket, bordering 

 Mazon Creek, in Illinois, about sixty miles south of Chicago, the first 

 of July, 1874 (Bull. Essex Inst., Vol. VIII., 1876, p. 102). Mr. H. K. 

 Coale took a single specimen in Starke County, Ind., June 8, 1884. 

 Prof. B. W. Evermann says it is a rare summer resident in Carroll 

 and Monroe counties. In Franklin County it is very rare. Mr. 

 Eolla Rockafellar took two specimens at Brookville, April 30, 1887, 

 and I took it there in May, 1882, May 9, 1887, and May 23, 1883. 

 It was observed at Spearsville, May 4 and 5, 1897 (Bamett); Green- 

 castle, May 7, three, and May 11, 1892 (Earlle); Lake County, May 

 16, 1877 and 1880 (Coale); Cook County, 111., May 15, 1886 (Parker); 

 May 19, 1877 (Coale); Petersburg, Mich., May 4, 1897 (Trombley). 

 In the fall I found them at Brookville, September 21, 1885. They 

 were noted at Cincinnati, 0., September 18, 1877, September 17, 



