- Parrots of the World, Joseph M. Forshaw (1978)
MALE: general plumage dark green, distinctly darker than in any other species; forehead and cheeks emerald green; underparts glaucous green, slightly tinged with olive on breast and with yellow on under tail-coverts; lower back and rump blue-violet, much darker than in any other species; upper tail-coverts dark green; primary and secondary-coverts, secondaries, and under wing-coverts blue-violet; outer webs of innermost primaries blue-violet towards bases; undersides of flight feathers bluish-green; tail dark green above, bluish-green below; upper mandible grey, lower horn-colored; iris brown; legs greyish-brown.
FEMALE: all blue markings replaced by green; general plumage paler than in male, particularly underparts which are yellowish-green; forehead, forecrown, and cheeks greenish-yellow.
IMMATURES: undescribed, but probably similar to adults.
LENGTH: 12.5cm. (5")
SUBSPECIES:
- F. s. eidos - MALE like sclateri, but green of general plumage lighter and more yellowish, particularly on underparts; paler blue-violet on rump and lower back. FEMALE similar to sclateri, but green of general plumage lighter and more yellowish, especially on breast.
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- The Atlas of Parrots, Dr. David Alderton (1991)
ALTERNATIVE NAMES: Dusky-billed Parrotlet.
SEXES: The cock is a dark shade of green, significantly darker than parrotlets of other species. The forehead and cheeks are a relatively bright shade of emerald-green. There is an olive suffusion to the breast, with the underparts generally being bluish green. The under tail coverts are marked with yellow. The bluish violet coloration of the lower back and rump is also much darker than in other species, with the upper tail coverts being dark green. The under wing coverts are also bluish violet, with the lower surface of the flight feathers being bluish green. Both the secondary coverts and secondaries are bluish violet, as are the primary coverts, although only the inner primaries are this color, at their bases. The tail feathers are dark green on their upper surface, and bluish green beneath. The upper bill is grayish black, with the lower being pale horn in color; legs brownish gray; irides brown.
Hens lack the blue plumage of cocks, being predominantly green in color. They are slightly paler in terms of overall coloration, noticeably the underparts, which are more greenish yellow. The lower back and rump, as well as the under wing coverts, are emerald-green. Some individuals may have a reasonably clear yellow frontal band, with yellow on the sides of the head and throat as well. But in most cases, these areas are more greenish yellow.
YOUNG BIRDS: Appear to be undescribed. Immature cocks may well have less prominent areas of blue plumage, as with other members of the genus, with the lower back and rump also showing traces of green plumage. Young hens probably resemble adults.
RECOGNIZED SUBSPECIES: Two. These are as follows:
- F. S. sclateri: Ranges from Caqueta in the southeast of Colombia southwards via the Napo River and Sarayacu in eastern Ecuador to eastern Peru. Also present in neighboring western Brazil, in the far south of Acre, extending into northern Bolivia. , Extends eastwards via Amazonas and the Amazon basin reaching Belem, Para, in the northeast of Brazil.
- F. S. eidos: Occurs in Guainia, in the far east of Colombia eastwards into Venezuela, being found here in Amazonas, Bolivar and Carabobo, and in the vicinity of the upper Negro River, in Amazonas, Brazil. Also reported as inhabiting western Guyana and French Guiana. Cocks are lighter and yellower in color than those of the nominate race, most noticeably on the underparts. The bluish violet coloration of the rump is also paler. Hens are similar to those of the nominate race, but their green plumage, especially over the breast is also lighter and yellower. Known as Schemburgk's Parrotlet.
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- Encyclopedia of Aviculture (1972)
MALE: green, darker than any other of the genus, the forehead and sides of the head are lighter and the under parts paler. Lower back, rump, center of the wings, bend of the wings, and under wing coverts are deep blue. Iris brown, beak, upper mandible dusky brown, lower mandible whitish; legs and feet greyish.
FEMALE: dark green, rump lighter, sides of head and throat yellowish-green. There is no blue.
SUBSPECIES:
- F. s. eidos - the green color is darker and the blue on the rump of the cocks is also darker than in the nominate race.
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