SHORE BIRDS OF NORTH AMERICA. 



43 



GENUS TRINGA LINN. 



SUBGENUS TRINGA. 

 TRINGA CANUTUS (Linn.). 



Knot. Robin Snipe. 

 REDBREAST SANDPIPER. BLUE PLOVER. GRAYBACK. 



Upper t:iil cove.ts. 



Tringa Canutus. 



Summer plumage : Top of the head, buffy white, mixed with blackish. Upper plumage, 

 variegated, with black, white, and buff. T T pper tail coverts, barred with black aiid white, 

 often marked with buff; entire under parts, except the lower abdomen, rufous brown ; lower 

 abdomen, white; axillars, white, with long, arrow-shaped markings of dark gray. 



Winter plumage : Entire upper plumage, ashy gray, the feathers having pale, brownish 

 shafts, showing indistinct fine lines; upper tail coverts, white, banded with brown; under 

 parts, white ; the breast and sides with indistinct, irregular dots and bands of brownish gray ; 

 belly, and under tail coverts, pure white; axillars, white, with irregular, arrow-shaped, 

 brownish gray marking. 



Length, 10.60; wing, 6.70; tarsus, 1.25; bill, 1.30. 



The Knot is a cosmopolitan species which breeds in the Arctic regions, 

 and is common in the United States during migrations. It winters from 

 Florida to South America, a few remaining in Florida all winter. The eggs 

 are known only from a single specimen taken near Fort Conger, by General 

 Greeley, and described as "light pea green, closely spotted with brown, in 

 small specks about the size of a pinhead." (See Merriam, Auk, 11, 1885, 

 p. 313.) 



