african grey hornbill tockus nasutus widespread farmer bird

background tree nature africa grey bird wildlife tockus nasutus outdoor wild ecotourism ornithology african hornbill beautiful subsaharan southwest arabian peninsula diet indigenous knowledge farmer avian fauna nesting wilderness perched environment feather species habitat animal behavior conservation beak serengeti namibia tourism safari tanzania scenery watching wings adult view maniara widespread nasutuswidespread sub-saharan peninsula gray toko two exotic birds yellow beaks sit thorny bush