GREBES. 



67 



ing season exclusively on fresh water. Only during the migrations and winter-time 

 are they to be found at sea. 



The crested grebe (Coli/mbus cristatits), the species represented in the cut, is one 

 of the largest of the genus. It has formerly been considered an inhiibitant of this 

 continent, but, as it seems, quite erroneously, it being confined to the temperate parts 



"^-.^ta 



!^»-^.' 



Fio. 30. — Coli/mbus criitaitu, crested grebe. 



of the Old World, including Europe. The western grebe (yEchmophorits occideiitah's) 

 inhabits the western and southwestern portion of the Nearctic region. It is charac- 

 terized by its e.\tremely elongated neck, long and slender bill, and by the absence of 

 parti-colored ruffs or crests. Podkcps doniiiiiaiiiits, from South and Central America, 

 rejiresents in the Xew World the well-known European dal)-oliick (I', jlui-ititilis), holh 

 very small species, destitute of crests or ruffs, tiie latter rejiresented all over the Old 



