ORDER PASSERIFORMES. 207 



southern California, Arizona, southern New Mexico, Sonora, and Chihuahua 

 and east to western Iowa (casually) and central Kansas. Winters from central 

 California, southern Arizona, southern New Mexico, and central Texas to 

 Vera Cruz and Puebla. Accidental in Wisconsin, Missouri, Illinois, New York, 

 and Massachusetts.! 



Sayomis saya quiescens Grinnell. San Jose Phoebe. [457a.] 



Sayornis sayus quiescens Grinnell, Condor, XXVIII, No. 4, July 15, 

 1926, 180. (San Jose, 2500 ft. altitude, latitude close to 31°, about 45 

 miles northeast of San Quintin, Lower California, Mexico.) 



Range. — Northern section of the Lower California peninsula, from lat. 30° 

 north to the United States boundary. Ranges more widely in winter, casually 

 to the Colorado delta. 



Genus EMPIDONAX Cabanis. 



Empidonax Cabanis, Journ. fiir Orn., Ill, No. 18, Nov., 1855, 480. Type, 

 by monotypy, Tyrannula pusilla Swainson = Tyrannula minima 

 Baird. 



Empidonax flaviventris (Baird and Baird). Yellow-bellied Flycatcher. [463.] 



Tyrannula flaviventris W. M. and S. F. Baird, Proc. Acad. Nat. Sci. Phila., 

 I, No. 28-29 July-Aug., 1843 [Sept. 18], 283. (Cumberland Co., Pa. = 

 Carlisle, Pennsylvania.) 



Range. — Breeds in the Canadian Zone from northern British Columbia, 

 southern Mackenzie, central Manitoba, central Quebec, and Newfoundland 

 south to central Alberta, northern Minnesota, northern Michigan, New York, 

 northern Pennsylvania, southern New Hampshire, and Nova Scotia. West in 

 migration to the eastern border of the Plains, eastern Texas, and eastern Mex- 

 ico; winters from southern Mexico and Guatemala to Panama. Occasional in 

 western Florida; accidental in Greenland. 



Empidonax virescens (Vieillot) . Acadian Flycatcher. [465.] 



Platyrhynchos virescens Vieillot, Nouv. Diet. d'Hist. Nat., nouv. ed., 

 XXVII, 1818, 22. (New name for Muscicapa querula Wilson, Amer. 

 Orn. II, pi. 13, fig. 3, 1810.) (No locality given = near Philadelphia, 

 Pennsylvania.) 



Range. — Breeds from the northern limit of Upper Austral Zone in north- 

 eastern Nebraska, central Iowa, southern Michigan, southeastern Ontario, New 

 York, southern Vermont (casually), and Massachusetts (casually) south to 

 southern Texas, the Gulf States, and central Florida. Migrates through 

 Yucatan and Central America, casually to the Bahamas and Cuba; winters in 

 Colombia and Ecuador. 



! The bird of the Yukon VaUey, Alaska, has been separated as S. s. yukonensis 

 Bishop (Auk, XVIII, 1900, 115). 



