CHECK LIST 



BIRDS OF ONTARIO. 



The number in the margin opposite the species corresponds with 

 the number on the label of each specimen of that species in the 

 Biological Section of the Museum of the Department of Education. 



Species marked (*) are wanting to complete the collection. 



Order PYGOPODES. Diving Birds 



Suborder PODIOIPEDES. '.l^rebes. 



Family PODICIPID.E. Grebes. 



Genus COLYMBUS. 



Subgenus COLYMBUS. 



1. HolbcEll's Grebe. 



(Colymbus holboelli ) 



A regular but never a common spring and autumn visitor to the 

 waters of southern Ontario. Probably breeds in the northern part of 

 the Province. 



Subgenus DYTES. 



2. Horned Grebe. 



(Colymbus auritus.) 



Abundant on the great lakes and all large bodies of wat^r through- 

 out the Province in spring and autumn, breeding in the large marshes. 

 A few remain on Lake Ontario through the winter. 



Genus PODILYMBUS. 



3. Pied-billed Grebe. 



(Podilj'mbus podiceps.) 



A common summer resident of marshes all over the Province, 

 breeding throughout its range. Arrives early in April, departs about 

 the middle of October. 



[5] 



