KEY TO THE WATER BIRDS OF FLORIDA. 



53 



ORDER PYGOPODES. 



Diving Birds. 



Family PODICIPID.E. Grebes. 

 Genus COLYMBUS Linn. 



C0LYMBU5 AURITUS Lmu. 

 Horned Grebe. 



Adult ill siiinincr : Upper parts, including back, wings, 

 top of the head and back of the neck, glossy black : throat 

 black : front of the neck, breast, and sides of the body rufous 

 chestnut ; rest of under parts white ; wings dusky black ; 

 secondaries white ; lores dull chestnut ; the two small tufts 

 of feathers at the sides of the occiput brownish buff. 



Adult in winter and immature : Head and back graj^- 

 ish, under parts white, usually tinged with gray on the breast 

 and lower throat : no tufts on sides of the head in winter 

 ^^d plumage. 



^^$1' Length, 13.40; Wing, 5.40 ; Tarsus, 1.70 ; Bill, .85 to .95. 



The Horned Grebe is not uncommon on the 

 Athmtic coast during the migrations, breeding 

 from tlie Northern Ignited vStates northward and migrating in winter south to 

 Florida and the Gulf States. 



The nest is constructed on floating debris : eggs, four to seven, dull 

 white or vellowish white. 



Range : "• Nortliern Hemisphere : breeds from United States northward." 



(a.o.u.) 



