Dusky Broadbill, Corydon sumatranus, UNESCO World Heritage, Kaeng Krachan National Park, Thailand

nesting broadbill broadbills broadbills of thailand dusky broadbill montane birds corydon sumatranus passeriformes foraging kaeng krachan national park birding jungle nest wildlife bird watching conservation perch birds foliage branch diurnal montane forest tree natuaral habitat natural habitat nature tail ornithology black feathers trees green monotypic eurylaimidae of asia animals forest tropical 4k footage thailand flying feather feathers wings national park eurylaimidae 4k resolution bill world heritage unesco corydon black