Western long-tailed hornbill, Horizocerus albocristatus, perched on a tree branch amid the forest canopy, close up shot

western long tailed hornbill tail horizocerus albocristatus bird species bucerotidae forest west africa eastern cassini white crested animal black plumage bill feather swoop perch tree branch stand nature natural behaviour habitat singapore zoo park mandai wildlife wild reserve conservation birdwatching amazon amazonian paradise exotic african crest wing canopy wooded