WILSON'S PLOVER 



to the feathers; below white obscurely streaked 

 and washed with gray on foreneck and chest. 



Young. Somewhat similar to winter adults 

 but with yellowish spots and edgings to feathers 

 of back. 



A rather uncommon migrant found singly or in 

 small flocks, recorded by Hallinan from the 

 mouth of the Rio Venado, in March. It is 

 chiefly a bird of the beaches, recognizable in any 

 plumage by its large size, stout build and large 

 round head. 



2. Pagolla wilsonia beldingi Ridgway 

 Belding's Plover 



Length, 190 mm. (7.50 in.) ; tail, 45 mm. (1.80 

 in.). 



Sexes similar. Adult. In general similar to 

 Charadrius semipalmatus , but the bill notice- 

 ably larger and stouter, the back lighter, the 

 sides of the head brownish gray like back, and 

 the white of the forehead extended back into a 

 line over the eye. No colored eye ring. 



Young. Similar, but breast band grayish 

 brown, and fore part of crown grayish brown 

 instead of black. Bill black; feet flesh colored. 



A bird of sandy beaches, a rare migrant in the 

 Canal Zone. Recorded by Hallinan from near 

 Panama City in August. 

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