Blue-headed Sapphire

The blue-headed sapphire is 9 to 11 cm (3.5 to 4.3 in) long. Males weigh 6.2 to 6.8 g (0.22 to 0.24 oz) and females 4.6 to 5.6 g (0.16 to 0.20 oz). Males have a straightish coral red bill with a black tip. Females' bills have a black maxilla with red at its base and a mostly pinkish mandible with a black tip. Adult males have a deep glittering blue upper throat, face, and crown. Their nape is dark blue-green and the rest of their upperparts metallic green. Their tail is dark steel blue. Voice: The blue-headed sapphire's song is "a repeated short-warbled phrase that starts with a squeaky 'tee' note, 'tee…teetlitlitsee-chup… teetlitlitsee-chup'." It also makes "short 'chip' notes and a high-pitched descending rattle."