a marabou stork bird in captivity behind a cage

africa african arid bare beak behind big bigger bill bird birds black bold cage cages captive captivity cloak dark feather feathers flu ground h1n1 h5n1 habitats head heads ill influenza land large larger leg legs like long marabou massive neck necks sahara scavenger scavengers size sized skinny stork storks tempered undertaker vulture vultures wading wet white wing wings wingspan zoo