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Brown-headed Parrot L: 24 cm (9") This smallish green parrot has yellow underwings and a plain brown head (although immatures are duller) . The much larger (34 cm) and more robust Grey-headed Parrot (not illustrated) is very localized in Kruger, mostly from Punda Maria north, and is told by its green underwings, massive all-pale bill, and red shoulder patches and ‘boots’ . Meyer’s Parrot (not illustrated) is scarce along the Limpopo and has an all-brown back and wings . The Brown-headed Parrot is fairly common throughout Kruger, with an estimated population of 2,500, with birds moving locally to take advantage of fruiting trees . Loud, screeching, high-pitched, metallic calls often draw attention to their presence in fruiting trees or in flight . Although this bird is not threatened, Kruger is a crucial area for its conservation in South Africa, with numbers declining outside the park due to habitat loss and trapping for the cage-bird trade . Fruit-eaters 166 African Green-Pigeon L: 30 cm (12") A plump, mainly green pigeon with a grey mantle and dull burgundy shoulders . The bill is whitish with a red base, the eyes are pale, and vent, ‘boots’ and wing edgings are yellow . This is a fairly common species in thicker woodland and riverine forest in Kruger, and often first detected by a strange and rather amusing call that involves whinnying clicks, whistles, cackles and growls . It is locally nomadic, depending on food availability, with groups of up to 30 sometimes congregating in fruiting trees, especially figs . They clamber around clumsily like parrots but can be infuriatingly well camouflaged in the canopy of tall trees, their presence often only being revealed by slight movements . When disturbed, they explode from a tree and fly fast and direct . BIRDS OF FORESTS AND RIVERINE THICKET 167 ...