266 BULLETIN 179, UNITED STATES NATIONAL MUSEUM 



DISTRIBUTION 



Range. — Arizona and Mexico south to Honduras ; casual in western 

 New Mexico. 



The range of this species extends north to central Arizona (Fort 

 Wliipple, MogoUon Mountains, and White Mountains). East to east- 

 ern Arizona (White Mountains, Fort Apache, and Chiricahua Moun- 

 tains) ; Chihuahua (Pinos Altos and Jesus Maria) ; Tamaulipas 

 (Eealito and Montelungo) ; Veracruz (Jalapa) ; British Honduras 

 (Augustine) ; and Honduras (Mount Cacaguatique) . South to south- 

 western Honduras (Mount Cacaguatique and Los Esesmileo) ; south- 

 ern Guatemala (Tecpam and Volcan de Fuego) ; Guerrero (Chil- 

 pancingo) ; and Nayarit (San Bias). West to Nayarit (San Bias) ; 

 western Durango (Arroyo del Buey) ; Sinaloa (Chinobampo and 

 Alamos) ; Sonora (Oposura and Saric) ; and Arizona (Huachuca 

 Mountains, Santa Rita Mountains, Santa Catalina Mountains, and 

 Fort Whipple). 



During the winter season the species apparently withdraws from 

 the United States and is then found north to northern Sinaloa 

 (Alamos) and central Tamaulipas (Montelungo). 



The typical subspecies, known as Swainson's flycatcher {MyiocJumes 

 pertinax fertinax) , occupies the southern part of the range north to 

 central Mexico, while Coues's flycatcher {M. p. pallidiventris) is found 

 in northwestern Mexico and in Arizona. 



Migration. — Early dates of arrival in Arizona are : Sabino Canyon, 

 March 23 ; Santa Rita Mountains, April 5. Late dates of departure 

 are : Mount Graham, September 24 ; Tombstone, September 26. 



Casual records. — In 1876 the species was recorded twice in New 

 Mexico. It was reported as seen on June 21 in the Zuni Mountains 

 east of Agua Frio, and on July 16 a specimen was taken at Fort 

 Bayard. The Colorado record for this bird (Auk, vol. 4, p. 264, 1887) 

 was probably erroneous and is rejected. 



Egg dates. — Arizona: 33 records. May 12 to July 13; 17 records, 

 June 10 to 25, indicating the height of the season. 



Mexico : 9 records. May 27 to June 27. 



MYIOCHANES VIRENS (Linnaeus) 



EASTERN WOOD PEWEE 



Pistes 3S-40 



HABITS 



Contributed by Win sob Maeeett Tyler 



Spring. — The long spring migration is drawing to a close. The 

 hardy adventurers of March have settled here in New England for 



