BIRDS OF ONTARIO. 



37 



Order COLOMBO. (The Pigeons.) 



Bill straight, compressed, the horny tip separated by a constriction 

 from the soft part. Nostrils opening beneath a soft, humid membrane 

 or cere, at base of bill. Frontal feathers sweeping in a strongly convex 

 outline across base of upper mandible. Hind toe on a level with the 

 others. Tail in our species long, wedge shaped, the feathers pointed. 



FAMILY COLUMBID^. (PIGEONS.) 



Wings long, pointed ; plumage compact, the feathers loosely in- 

 serted. 



Passenger Pigeon. 

 GENUS ECTOPISTES. 



(315) Passenger Pigeon. 



(Ectopistes migratorius.) 



Formerly a very abundant summer resident, occurring in flocks of 

 countless thousands, but now very scarce. 



Dr. C. K. Clarke informs me that he found a small colony breeding 

 in eastern Ontario in 1898. 



GENUS ZENAIDURA. 



(316) Mourning Dove. 



(Zenaidura macroura.) 



A common summer resident, but somewhat locally distributed. 

 Breeding throughout its range. 



