African Swift vs Bradfield's Swift

African Swift and Bradfield's Swift can be challenging to differentiate in the field, but habitat preference and breeding behavior offer clues. African Swift is often found in moist highlands, while Bradfield's Swift is more associated with rock fissures and old buildings. Both species are similar in structure and plumage.

Check the habitat: African Swift is more likely in highland areas, while Bradfield's Swift prefers rocky or man-made structures. Look for mixed colonies, as African Swift often nests with other swifts.

African Swift typically breeds in moist highlands at elevations of 1,600–2,400 m, often in mixed colonies. Bradfield's Swift is more likely to be found breeding in rock fissures, old buildings, and caves, and has been expanding its range in southern Africa.