3. pinus. Above olive-green; beneath, with forehead, yellow; wings ash, with two white bands; lores black. Hab. Eastern Province of United States, south into Guatemala.
B. Tail without a conspicuous white patch.
c. Crown with a concealed patch of rufous (obsolete in ♀).
4. ruficapilla. Above olive-green; head ashy; beneath continuous yellow; a light orbital ring. Hab. North America (very rare in Middle and Western Provinces); Greenland. South to Southern Mexico (Oaxaca, Cordova, Orizaba).
Yellow of throat spreading over cheeks, and staining lores and eyelids. Atlantic States. (Carlisle, Penn., specimens.) … var. ruficapilla.
Yellow of throat confined within the maxillæ; lores and eyelids clear white. Mississippi Valley. (Chicago specimens.) … var. ocularis.
Yellow of throat restricted to a medial stripe, leaving its sides ashy. Middle Province. (Specimen from Fort Tejon, Cal., and East Humboldt Mountains, Nevada.) … var. gutturalis.
5. virginiæ. Above ash to the rump, beneath white. A patch on the jugulum, with the upper and lower tail-coverts, yellow. Hab. Rocky Mountains of United States, west to East Humboldt Mountains.
6. luciæ. Above ash, beneath continuous white. Upper tail-coverts chestnut. Hab. Colorado region of Middle Province.
7. celata. Above continuous olive-green, below continuous pale yellow. (Orange on crown in ♂ only?)