. Bulletin of the British Ornithologists' Club. 73 [Bull. 1976: 96(2)] One type (Fig. ia) is dusky brown with some black on the upperparts, heavily barred buff-yellow on the mantle, merging into dense, more cinnamon- rufous speckling on the crown. The wings and upper wing-coverts are barred cinnamon-rufous and dusky brown. The tail and tail-coverts are dusky brown barred buff-yellow with a green wash. The underparts are heavily barred buff-yellow and dusky brown becoming darker on the abdomen. The second type is best represented by the single Aldabra bird (Fig. id). It is darker, more n
. Bulletin of the British Ornithologists' Club. 73 [Bull. 1976: 96(2)] One type (Fig. ia) is dusky brown with some black on the upperparts, heavily barred buff-yellow on the mantle, merging into dense, more cinnamon- rufous speckling on the crown. The wings and upper wing-coverts are barred cinnamon-rufous and dusky brown. The tail and tail-coverts are dusky brown barred buff-yellow with a green wash. The underparts are heavily barred buff-yellow and dusky brown becoming darker on the abdomen. The second type is best represented by the single Aldabra bird (Fig. id). It is darker, more nearly black on the upperparts than the first type and the. Figure 1 Juvenile plumage types of Centropus toulou Left to right:— (a) Barred type from Imerina in the Humid East of Madagascar (Rand 1936). (b) Intermediate type from Maromandia on the northern edge of the Western Savanna close to the humid Sambiro District of Madagascar (Rand 1936). (c) Speckled type also from Maromandia. (d) Speckled type from Aldabra. (Photo: S. R. J. Woodell) mantle is speckled, not barred, with cream rather than cinnamon-rufous. Like the first type, it is speckled on the crown, but the markings are finer. The wings and wing-coverts are a colour between cinnamon-rufous and russet, barred with dusky brown. On the underparts differentiation between the two types is much less well defined, but the Aldabra bird has the mark- ings on the throat and chest more striated, less barred in pattern. Tail barrings varied considerably, without consistent differences in the two types. Both types show barring on the upper back, least so in the speckled birds, especially the Aldabra Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Ornithologists' Club. London : British Ornithologists' Club
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