Pycnonotus

trivial name latin name
Black-headed Bulbul Pycnonotus atriceps
Common Bulbul Pycnonotus barbatus
Yellow-vented Bulbul Pycnonotus goiavier
Red-whiskered bulbul Pycnonotus jocosus
Himalayan bulbul Pycnonotus leucogenys
Black-capped Bulbul Pycnonotus melanicterus
Black-fronted Bulbul Pycnonotus nigricans
Light-vented Bulbul Pycnonotus sinensis
Scaly-breasted Bulbul Pycnonotus squamatus
White-spectacled Bulbul Pycnonotus xanthopygos

comparison of wing and tail configuration