ORDER PASSERES. 185 
457. Sayornis saya (Bonap.). 
Say’s Pheebe. 
Muscicapa saya Bonar, Am. Orn. I. 1825, 20. 
Sayornis sayus BAIRD, B. N. Am. 1858, 185. 
[B.1g6, C 250,/R 316, C397. | 
Groc. Dist.— Western United States, from the Plains (central 
North and South Dakota, Nebraska and Kansas) to the Pacific ; 
north along the Yukon River to the Arctic Circle; south to Cape 
St. Lucas and over the Mexican Plateau to Puebla and central Vera 
Cruz. Accidental in Massachusetts. 
458. Sayornis nigricans (Swarns.). 
Black Pheebe. 
Lyrannula nigricans Swatns. Phil. Mag, I. May, 1827, 367. 
Sayornis nigricans BonapP. Coll. Delattre, 1854, 87. 
iB te4, Coane ie S07 Cus7Bal 
Geoc. Dist.— Southwestern United States, from Texas through 
southern New Mexico and Arizona to California, and northward 
along the Pacific coast to Washington ; south to Cape St. Lucas, Lower 
California, and in Mexico to Oaxaca. 
Genus CONTOPUS Capanis. 
Contopus Cas. J. f. O. III. Nov. 1855, 479. Type, Aluscicapa 
virens LINN. 
SuBGENUS NUTTALLORNIS Ruipvew. 
Nuttallornis Ripcw. Man. N. Am. B. 1887, 337. Type, Zyran- 
nus borealis SWAINS. 
459. Contopus borealis (Swarns.). 
Olive-sided Flycatcher. 
Tyrannus borealis Swatns. in Sw. & Ricu. Faun. B. A. II. 
193%, E41, Pls 35 
Contopus borealis BAIRD, B. N. Am. 1858, 188. 
