6. Podilymbus podiceps 
PIED-BILLED GREBE. $13.50 inches 
Adult. In summer. Above, head and back grayish brown. 
Below, throat black; sides of head gray; neck and breast yellowish 
brown ; belly white; bill whitish with black band. In fall and Im= 
mature, Similar but throat is white and billlacks the black band. 
Also called Hell-diver, Dipper and Dabchick. Found on ponds 
and rivers, also on pools by the seacoast but seldom on the open 
sea. 
Nest. A mass of grass, weeds and mud loosely attached to some 
surrounding vegetation. 
Breeds. I[n northern, rarely in southern New England. <A com- 
mon spring and fall migrant. 
