SHORE BIRDS OF NORTH AMERICA. 



71 



FAMILY CHARADRIID^. PLOVERS. 



The Plovers are a cosmopolitan family, numbering something less than 

 one hundred species, fifteen of which occur in North America, including exotic 



Black-bellied Plover (Winter). 



Piping Plover. 



Semipahnated Plo\ 



stragglers. Asa rule they have but three toes, although tuo genera, Squat- 

 arola and Vanellus, have four. The tarsus is reticulate and the toes are partly 

 webbed. 



