Tsavo Sunbird vs Pemba Sunbird

In short

The Tsavo Sunbird and Pemba Sunbird are both small, vibrant sunbirds with overlapping features, but they can be distinguished by their bill shape and plumage details. The Tsavo Sunbird generally has a more curved bill and distinct plumage coloration compared to the Pemba Sunbird. Observing their habitat can also aid in identification, as they are typically found in different regions.

Identification tips

1. Bill Shape: Look for a more curved bill in the Tsavo Sunbird. 2. Plumage: Note the iridescence and sheen; Tsavo Sunbird often appears more metallic. 3. Habitat: Consider the location; Tsavo is more likely in mainland dry areas, while Pemba is island-restricted. 4. Region: If on Pemba Island, Pemba Sunbird is more probable.

Size

Both species are similar in size, typical of small sunbirds, making size an unreliable distinguishing feature.

Plumage

The Tsavo Sunbird often shows more iridescent plumage with a metallic sheen, particularly on the throat and upperparts, whereas the Pemba Sunbird has a more uniform coloration with less iridescence. Males of both species have bright, glossy colors, but the exact hue and sheen can differ slightly, with Tsavo often appearing more vibrant.

Behaviour

Both species exhibit typical sunbird behavior, such as hovering at flowers to feed on nectar. Behavioral differences are subtle and not reliable for identification.

Habitat

The Tsavo Sunbird is typically found in dry, open woodlands and savannas, while the Pemba Sunbird is more restricted to the island of Pemba, often in coastal and forested areas. Habitat preference can be a strong clue if the location is known.

Voice

Vocalizations are not well-documented for both species, and differences are subtle, making them unreliable for field identification.