xlv. 



I. Throat gray, neck chestnut-brown. 



II. Throat black. 



A. Head black, a white throat-band. 



B. Head ashy. 



III. Throat whitish. 



A. Back spotted with white. 



B. Back margined with grayish. 

 I'. Wing over 13 inches long. 

 2. Wing under 13 inches long. 



319. Red=throated Loon. 



317. Loon. 



31S. Black=throated Loon. 



319. Red=throated Loon. 



317. Loon. 



318. Black- throated Loon. 



Family 3. Alcidae. Murres, Auks, Puffins. 



One memher of this family has been found on Lake Erie after a severe northeast storm. It 

 is not likely that others will be found there again under normal conditions. Birds comprising this 

 family are ocean birds, and being short winged, do not wander inland voluntarily. 



320. Brunnich Murre. 



