Black-crested Bulbul, Rubigula flaviventris and Black-headed Bulbul, Brachypodius melanocephalos, Thailand

blackcrested bulbul blackheaded bulbul passerine passeriformes birdbath insectivores birds wildlife rubigula flaviventris wildlife footage bird watching mimicry conservation drongo insect feeders foraging ornithology perch yellow brachypodius natuaral habitat insectivorous dicruridae nature diurnal insectivore dicrurus brachypodius melanocephalos national parks bird portrait jungle thailand black feathers tropical flying branch pond feathers tail wings forest folliage green rubigula feather tree bill water black