About Picus xanthopygaeus (J.E.Gray & G.R.Gray, 1847)
This is Picus xanthopygaeus (J.E.Gray & G.R.Gray, 1847), a medium-sized green woodpecker. It has a streaked throat and scaly whitish underparts. Its upper body is green, with a yellowish rump, white supercilia, and a black and white moustache. The crown is red in males and blackish in females. Its tail is dark and unmarked, and it has a small, dark bill.