Two other species that on account of similarity of plumage 
may well be considered together are the following : 
American Golde n Plover ( Charadrius dominions) . 
Black-bellied Plover {Charadrius squatarold). 
1. Natal Down. Mottled above, yellowish below. 
2. Juvenal Plumage acquired by a complete postnatal moult. 
Extra-limital specimens of C. dominions in this plumage are 
the following, viz. ; Am. Mus. Nat. Hist. No. 30856, August, 
Bolivia, and eight birds from Brazil taken between October 
c and November 14. Specimens of C. squatarola are the follow- 
ing, viz. : Am. Mus. Nat. Hist. No. 61634, <? , October 25, 
France; No. 61633, November 9, Amoy, China; U. S Nat. 
Mus. No. 119351, $, December 26, West Indies. . 
3. First Whiter Plumage acquired by a partial postjuvenal 
moult late in the fall which involves only the body plumage. 
No. 61634 just cited shows an early stage. The winter dress is 
deep gray above (yellow-tinged in C. dominions) and chiefly white 
below, indistinctly mottled on the breast and not differing greatly 
in the two species. . 
4. First Nuptial Plumage acquired by a prenuptial moult that is 
not muse ox me wings and tail. I lie difficulty of distinguishing 
adults from young, added to imperfect data, makes me hesitate 
about citing several specimens with worn flight-feathers that show 
growth of new body feathers, but the evidence that new body 
plumage is assumed by moult is conclusive if we examine birds 
even in worn breeding dress. 
A few specimens of Charadrius pluvialis indicate precisely the 
same sequence of plumages and moults here outlined. 
It is only a matter of suitable specimens and of time, for the 
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