BIRDS OF ONTARIO. 37 



range in the Province. Arrives about the middle of May, departs 

 about the end of August. 



Genus SAYORNIS. 



178 Phcebe. 



(Sayornis phcebe.) 



An abundant summer resident, breeding about farm buildings 

 and bridges throughout its range iij the Province. Arrives early in 

 April, departs early in October. 



Genus CONTOPUS. 

 Subgenus NUTTALLORNIS. 



179 Olive-Sided Flycatcher. 

 (Contopus borealis.) 



A regular but uncommon visitor. I have found one or two each 

 spring for several yearr , but have not seen it at any other season. 



Subgenus CONTOPUS. 



180. Wood Pewee. 



(Contopus virens.) 



Common summer resident, breeding in woods throughout its 

 range in the Pro'Vince. Arrives about the middle of May, departs 

 about the middle of September. 



Genus EMPIDONAX. 



181. Yellow-bellied Flycatcher. 



(Empidonax flaviventris.) 



An uncommon visitor. I have seen a few each spring, but have 

 never seen the species later than June. It probably breeds through- 

 out its range in the Province. | 



182. Traill's Flycatcher. 



(Empidonax traillii.) 



A regular visitor, generally distributed, but neve'r common. I 

 have only found it in spring in Southern Ontario. 

 Breeds in the interior. 



183. Least Flycatcher. 



(Empidonax minimus.) 



Common summer resident, breeding in orchards, shrubberies and 

 woodlands throughout its range in the Province. 



Arrives about the middle of May, departs at the end of August. 



