The Red-whiskered Bulbul has a distinct red ear patch, and red tail coverts. Both features are very distinctive from other birds. This bulbul averages seven inches in length and can weigh from 23 to 42 grams. The birds are brownish above and white below their stomach region from birth until an age six months.
- Their nostrils are ovalshaped, and have bristles.
- Red-whiskered Bulbul was first sighted on Oahu in 1965 and is now very common on Oahu.