280 KEY TO THE WATER BIRDS OF FLORIDA. 
The eggs are buff white, mottled with brown and chocolate brown, 
heaviest on the larger end. 
EREUNETES OCCIDENTALIS Zawr. 
Western Semipalmated Sandpiper. 
This species may be distinguished from EZ. puszl/us by its longer bill, which is oftentimes 
1.25 inches in length, while Z. pwsz//us rarely if ever has the billone inch in length. Occasionally 
examples of the Western Sandpiper have the bill less than one inch, and in such cases it is 
almost impossible to distinguish them from the winter examples of Z. puszl/us ; therefore it is 
perhaps as well for the sportsmen to consider all of those birds having bills less than one inch 
in length to be Z. pusz/lus, and if it is important to have the identification absolutely accurate, 
they could easily obtain the opinion of some professional ornithologist to settle such a fine point. 
Adult in summer: A small web between the toes; top of head brown; back reddish 
brown; the feathers marked with black and some of them tipped and edged with white; rump 
smoky black; under parts white, showing a faint tawny tinge on the breast. 
Adult in winter - Top of head and back gray, showing brown on the shafts of the feathers 
forehead and under parts dull white; the breast faintly lined with grayish brown, sometimes 
entirely wanting. 
Bill black, becoming greenish olive on basal part of the mandible. 
Length, 6.50; Wing, 3.85; Tarsus, .82; Bill, .90 to 1.15. 
Occasionally occurs on the Atlantic coast, although its home is properly 
in the West. It is common in Florida in winter, more so on the West than 
on the East coast. 
The eggs are pale buff dotted with dark brown. 
Genus CALIDRIS Cov. 
CALIDRIS ARENARIA (Zzzz.). 
Sanderling. Bull-peep. 
Adult in summer: Head, throat, and upper 
parts, except rump, reddish brown, black and white; 
belly and under parts pure white. 
Adult in winter: Top of the head and back 
ash gray, the shafts of the feathers being brown; 
forehead and entire under parts white ; bill black. 
Length, 8.10; Wing, 5.05; Tarsus, 1; Bill, 1. 
This species may always be distin- 
guished by the absence of the fourth 
toe, being the only Sandpiper occurring 
on our coast having three toes. It is 
