. Bulletin of the British Ornithologists' Club. [Bull. 1976: 96(3)] no longitudinal ridges, measuring 24-8 x 17*8 (3-7 g) and 24-6 x 18-o mm (3 ' 9 §)• They contained large embryos, but with sufficient yolk to see that it was of a deep orange-yellow characteristic of eggs of this family. The honeyguide's egg is glossy and rounded at both ends and measures 22*2 x 16-6 mm (2*9 g). It contained a very large embryo which would have hatched within 36 hours, showing the vicious bill hooks as illustrated on Plate 5 in Friedmann (1955). This egg is too small to be that of a Greater Honeyguide I
. Bulletin of the British Ornithologists' Club. [Bull. 1976: 96(3)] no longitudinal ridges, measuring 24-8 x 17*8 (3-7 g) and 24-6 x 18-o mm (3 ' 9 §)• They contained large embryos, but with sufficient yolk to see that it was of a deep orange-yellow characteristic of eggs of this family. The honeyguide's egg is glossy and rounded at both ends and measures 22*2 x 16-6 mm (2*9 g). It contained a very large embryo which would have hatched within 36 hours, showing the vicious bill hooks as illustrated on Plate 5 in Friedmann (1955). This egg is too small to be that of a Greater Honeyguide Indicator indicator. It cannot be the egg of a Scaly-throated Honeyguide /. variegatus as this habitat is quite unsuited to it and according to Benson et al. it is entirely absent from the Southern Province plateau. The egg size and barbet host indicates that it is referable to the Lesser Honeyguide /. minor, a species of frequent occurence in the Choma area. Benson et al. give only one breeding record (September) for the Lesser Honeyguide, evidently referring to an unaccompanied juvenile as no host species is Figure 1: Cross section of Chaplin's Barbet Lybius chaplini nest hole (to scale). Mackworth-Praed & Grant (1962) state that the call is unrecorded, although Winterbottom (1932) had described it as "a loud, cackling sound, suggestive of demoniacal laughter, and quite unmistakable". On 29 April 1974 R. S. recorded on tape the call of this species at Muckleneuk, near Choma. Certainly it is unmistakable, and may be described as a loud, strident,. 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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