BIRDS OF ONTARIO. 



69 



(621 



GENUS LANIUS. 

 Northern Shrike. 



(Lanius borealis.) 



A regular, but not abundant, winter visitor. The bulk of them breed 

 in the north, but nests have been found at various places in southern 

 Ontario. 



Arrives in October, departs in April. 





Migrant Shrike. 



(6226) Migrant Shrike. 



(Lanius ludovicianus migrans.) 



A- regular but not abundant summer resident. Breeds throughout 

 its range in the Province. 



Arrives early in April, departs about the end of August. 



FAMILY VIREONID^E. (VIREOS.) 



Bill shorter than head, stout, compressed, decidedly notched and 

 hooked. Rictus with bristles. Nostrils exposed, overhung by a scale, 

 reached by the bristly frontal feathers. Tarsus scutellate ; toes joined 

 at base for the whole length of basal joint of middle one, which is united 

 with the basal joint of the inner and the two basal joints of the outer. 

 All are insectivorous. 



GENUS VIREO. 

 (624) Red-eyed Vireo. 



(Vireo olivaceus.) 



A common summer resident in woods and orchards. Breeds through- 

 out its range in the Province. 



Arrives early in May ; departs towards the end of September. 



