COLLARED PLOVER 



Bill black, orange at base; ring around eye 

 orange; feet yellow. In immature and winter 

 plumage black replaced by brownish gray. 



A migrant generally found in small flocks 

 along the beaches and mud flats, often associat- 

 ing with the small sandpipers. About the first 

 of April this species occurs in almost inconceiv- 

 able numbers along the rocky shores on the 

 Pacific side. Flocks seen near Panama about 

 the end of March sometimes contained as many 

 as 25,000 individuals at the lowest estimate, 

 covering the rocks along the shore when they 

 alighted; or flying in dense clouds over the 

 water, their white under parts gleaming in the 

 sunlight when they banked in making turns. 



5. Charadrius collaris (Vieillot) 

 Collared Plover. "Chiros" 



JEgialitis semipalmatus STONE, Proc. Phila. Acad. Nat. 

 Sci., 1918, p. 245. 



Sexes alike. Length about 145 mm. (5.70 

 in.); tail about 44 mm. (1.75 in.). Similar to 



FIG. 1 1 . Charadrius collaris 

 (Nat. Size) 



58 



