280 
YELLOW-RUMPED WARBLER. 
under the wings, spotted with black ; belly and vent, white ; 
wings, dusky black, marked with two white bars ; bill, black ; 
legs and feet brownish yellow ; tail, dusky, edged with light 
ash ; the three exterior feathers spotted on their inner webs 
with white. The female is distinguished by having no black 
on the throat. 
YELLOW-RUMPED WARBLER SYLVIA CORONATA. 
Plate XVII. Fig. 4. 
MotaciUa maculosa, Gmel. Syst. i. p. 984. — Motacilla coronata, Linn. Syst. i. p. 332. 
No; 31. — Le figuier a tete cendree, Buff. v. p. 291. — Le figuier couronne d’or, Id. 
v. p. 312 — Yellow-rump Flycatcher, JEdw. t. 255 Golden-crowned Flycatcher, 
Id. t. 298. — Yellow-rump Warbler, Arct. Zool. ii. No. 288 Golden-crowned 
Warbler, Id. ii. No. 294. — Lath. Syn. iv. p. 481, No. 104. Id. Supp. p. 182. 
Id. Syn. iv. p. 486, No. 11 — Turton , p. 599, Id. 606. — Parus cedrus uropygio 
flavo — The Yellow Rump, Bartram, p. 292. — Parus aurio vertice. — The Golden- 
crown Flycatcher, Id. 292. — Beale's Museum, No. 7134. 
S YL VICO LA CORONA TA. — Swainson. 
Sylvia coronata, Bonap. Synop. p. 77, (summer plumage.*) — Sylvicola coronata, 
North. Zool. ii. p. 216. 
In this beautiful little species we have another instance of 
the mistakes occasioned by the change of colour to which many 
of our birds are subject. In the present case this change is 
both progressive and periodical. The young birds of the first 
season are of a brown olive above, which continues until the 
month of February and March ; about which time it gradually 
changes into a fine slate colour, as in the figure on the plate. 
About the middle of April this change is completed. I have 
shot them in all their gradations of change. While in their 
brown olive dress, the yellow on the sides of the breast and 
crown is scarcely observable, unless the feathers be parted 
with the hand ; but that on the rump is still vivid ; the spots 
of black on the cheek are then also obscured. The difference 
of appearance, however, is so great, that we need scarcely 
* Winter plumage, Vol. II. Plate XLV. 
