Bulbuls / Greenbuls (Pycnonotidae)
These medium-sized songbirds occur across most of Africa and into the Middle East, tropical Asia to Indonesia, and north as far as Japan. A few species are found on the tropical islands of the Indian Ocean.
Bulbuls are short-necked slender birds with long tails and short and rounded wings. In most species, the bill is slightly slightly elongated and slightly hooked at the end.
Most species have olive-brown to black plumages. Although some species have colorful plumages with yellow, red or orange vents, cheeks and throats. Some species have distinct crests. Dull plumages species often have constrasting eyerings.
Males and females mostly look alike, except the females tend to be slightly smaller.