Sapphire-rumped Parrotlet

The sapphire-rumped parrotlet is 17 to 18 cm (6.7 to 7.1 in) long and weighs 54 to 66 g (1.9 to 2.3 oz). Its body is mostly green, darker above than below, and with a blue lower back and rump. The nominate subspecies' forehead and crown are olive brown and those of T. p. viridiceps are green; both have a white eye ring. The species has dusky brown scapulars that appear as a "V" when the wings are folded; females' are paler than males'. Their carpal bar is violet blue. The male's central tail feathers are green and the others red with blackish tips; female's add a green band near the tip. Voice: The sapphire-rumped parrotlet's flight call is an "almost goose-like" "nasal 'nyaah'". Flocks in flight call together, "resulting in a continuous nasal chattering sound." It also makes a "rapid rattling "che-che-che"" when perched.