Forest greenbuls
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Terrestrial Brownbul L: 19 cm (7·5") A dull brown, gregarious bird with dark red eyes and a whitish throat . It favours thickets and riverine forest where it scuffles through the undergrowth, flicking dead leaves in search of invertebrates and small vertebrates . It is a common and widespread resident throughout Kruger, usually occurring in small groups of 4–6 individuals, and gives a series of harsh, nasal “ugk-ugk-ugk-ugk” notes . Yellow-bellied Greenbul L: 22 cm (9") Although rather nondescript, this relatively large and bulky greenbul has greenish upperparts and yellowish underparts, including the underside of the tail . However, it has distinctive red eyes with a broken white eye-ring, a fairly large, pointed bill, a small, shaggy crest and shows yellowish underwings in flight . It is a locally common resident in a few localities in Kruger, particularly in the Punda Maria–Pafuri area and in the Nwambiya Sand Forest . It favours thickets and forest where it forages on fruits and insects, and is often first detected by its nagging, puppy-like “yeehn-yeehn-yeehn” call and various chattering notes . Sombre Greenbul L: 18 cm (7") A fairly long-tailed, rather nondescript, uniform drab-olive bird, slightly paler on the belly, with striking pale eyes (although juveniles have dark eyes and a small yellow gape) . It is a common resident throughout Kruger in the mid-storey and canopy of riverine forest and thickets, but is quite secretive and often first detected by its loud and shrill “Willie! Come out and play with me” song, ending with a nasal “sca-a-ared” . It feeds primarily on fruits, but will also eat insects . Greenbuls and brownbuls are large, relatively inconspicuous relatives of the more familiar bulbuls (see Dark-capped Bulbul, page 118). Forest greenbuls 170 BIRDS OF FORESTS AND RIVERINE THICKET sombre greenbul yellow-bellied greenbul 171 ...