Buff-bellied hummingbird

The buff-bellied hummingbird (Amazilia yucatanensis) is a medium-sized hummingbird. It is 10–11 cm (3.9–4.3 in) long and has a mass of 4–5 g (0.14–0.18 oz). Adults are a metallic olive green above and buffy in the lower breast. The tail and primary wings are rufous in colour and slightly forked. The underwing is white. The bill of the male is straight and very slender. It is red in colouration with a darker tip. The throat is a metallic golden green. The female has a dark upper bill, and is less colourful than the male.

Buff-bellied hummingbird

The buff-bellied hummingbird (Amazilia yucatanensis) is a medium-sized hummingbird. It is 10–11 cm (3.9–4.3 in) long and has a mass of 4–5 g (0.14–0.18 oz). Adults are a metallic olive green above and buffy in the lower breast. The tail and primary wings are rufous in colour and slightly forked. The underwing is white. The bill of the male is straight and very slender. It is red in colouration with a darker tip. The throat is a metallic golden green. The female has a dark upper bill, and is less colourful than the male.