White-chested Tinkerbird
The Makawa Barbet ( Pogoniulus makawi ) is described as a species of the family of the African barbets and attributed the Zwergbärtlingen within this type. However, the description of the species is based on the discovery of a single male individual who was caught on September 6, 1964 in the vicinity of the river Mayau in northwestern Zambia. Ornithologists Lester L. Short and Jennifer Horne doubt whether the species status is warranted here and drag into consideration the possibility that it is a very deviating colored individual of yellow tuft Zwergbärtlings. However, the variation of plumage coloration to yellow Tufts Zwergbärtling are large because the individual on the body underside of the chest to the belly white with fine black horizontal stripes was. There was the typical yellow Tufts Zwergbärtlinge white eye-streak over. Presence was merely a strip below the eye, but did not continue to the bill base. The chin was black, the rump yellow and not gold as the yellow tuft Zwergbärtling. The beak was richer, and the upper mandible more curved than in the Yellow Tufts Zwergbärtling. The wing length was 4.6 centimeters, the tail measured 3.2 and the beak 1.3 inches. Lester Short and Jennifer Horne, however, also point out that there is no simple explanation for these different body coloration. Melanism would explain some of the characteristics of the Makawa beard bird, but not the absence of yellow and shades of gray on the underside and the strong trained beak. Similar copies were not recovered in the excavation site, although there have been several times searching for this type.