Olive Sunbird

The olive sunbird is a large sunbird that ranges from 6.2-15 g in mass, 50–73 mm in wing length, 20–29 mm in bill length, 35–66 mm in tail length, and 12–15 cm in overall body size depending on the subspecies and sex. Its body colouration can vary from fully dark-olive to dull-olive with a paler olive-yellow or olive-grey underside. It has a long beak that curves downward and varies in colour from solid black to mottled grey, beige, and yellow-orange depending on the subspecies. Voice: The olive sunbird produces an incredibly loud song that accelerates throughout the song’s duration and is composed of ascending and descending notes. Cyanomitra olivacea olivacea produces a song approximately one minute long that consists of repeating ascending and descending whistles.