. Bulletin of the British Ornithologists' Club. . Cisticola chiniana bensoni. First winter £ in wing moult (left); adult male (right). feathers, while the contour of the wing of the fully adult bird is smooth. This replacement of the wing feathers is a peculiar moult, falling as it does between the post-juvenal and first pre-nuptial moults of the contour feathers. Lynes (1930, Cisticola Suppl.: pi. 1) links it with the first pre- nuptial moult, but notes that the moult of the remiges begins some time before the moult of the contour plumage. This first winter plumaged male is quite unlike the a
. Bulletin of the British Ornithologists' Club. . Cisticola chiniana bensoni. First winter £ in wing moult (left); adult male (right). feathers, while the contour of the wing of the fully adult bird is smooth. This replacement of the wing feathers is a peculiar moult, falling as it does between the post-juvenal and first pre-nuptial moults of the contour feathers. Lynes (1930, Cisticola Suppl.: pi. 1) links it with the first pre- nuptial moult, but notes that the moult of the remiges begins some time before the moult of the contour plumage. This first winter plumaged male is quite unlike the adult female. It is hardly to be separated from winter plumaged smithersi, being quite pale and tawny and heavily streaked above. Whether this is the rule for first winter birds of bensoni cannot be determined from a single specimen. Lynes () says that the first winter plumage is the same in colour and pattern as adult winter plumage, but that is certainly not the case with our two birds. Only adequate series will permit this anomaly to be clarified. Larger size was also a character of bensoni. The young male does not give a satisfactory measurement because of its moult from juvenal pri- maries. The female has a wing length of 55 mm., about the mean of the measurements of seven females of smithersi, 53-57 (). Size difference in females is obviously not great if it exists at all. The range of bensoni can now be outlined more surely. The type locality is on the eastern edge of Liuwa plain, and the race evidently inhabits the woodlands bordering the plain between the Luanginga and the Luam- bimba 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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