southern ground-hornbill, bucorvus leadbeateri, largest hornbill in the world. black bird with red face walking in the green grass

africa african animal background beak beautiful big bill billed bird black brown colorful conservation evening face fauna grass green grey habitat hornbill insect juvenile kruger national natural nature okavango orange outdoor park plumage portrait red sitting south southern strange sun texture tockus tree tropical white wild wildlife wings yellow yellowbilled