128 KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 
* Group 4. Wing, over 6.75 inches long. 
Section 1. Toes, three. 
Gray axillars of Golden Plover. 
Axillars, gray; rump, not orange brown. 
Charadrius duminicus. Golden Plover. 
See No. 224. 
Charadrius dominicus, 
Axillars, smoky black; rump and upper tail coverts, not orange brown. 
Charadrius squatarola. Black=bellied Plover. 
See No. 222. 
This species has four toes (the hind toe being so small that it often escapes notice), and properly belongs in 
Group 5, Section 3, but owing to the fact that it is constantly looked for among the three-toed species it is included 
in both sections. 
Rump, orange brown; underparts, white, with two black bands on the breast; axillars, 
pure white. Hyialitis vocifera. Killdeer Plover. 
See No. 225. 
No black bands on breast; shaft of first primary, white; back, brownish gray; axillars, 
white. A Western species of casual occurrence in Florida; not recorded elsewhere on 
Atlantic coast. Byialitis montana. Mountain Plover. 
See No. 231. 
Section 2. Toes, four. 
Axillars, smoky black; tarsus, over 1.70; hind toe, very small. 
Charadrius sguatarola. Black=bellied Plover. 
See No. 222. 
* For directions for measurement, see page 9. 
