White-throated Needletail vs Silver-backed Needletail
Hirundapus caudacutus versus Hirundapus cochinchinensis
Play a quiz with White-throated Needletail and Silver-backed Needletail
White-throated Needletail
Silver-backed Needletail
In short
The White-throated Needletail and Silver-backed Needletail are both large swifts, but they can be distinguished by their plumage. The White-throated Needletail has a darker glossed appearance with a white throat, while the Silver-backed Needletail features a distinct silver or pale gray patch on its back.
Identification tips
Look for the white throat and darker glossed plumage to identify the White-throated Needletail. The silver or pale gray patch on the back is a reliable field mark for the Silver-backed Needletail. Both species are fast-flying swifts, so focus on these plumage differences when they are in flight.
Size
Both species are similar in size, but the White-throated Needletail may have slightly shorter wings.
Plumage
The White-throated Needletail has a black forehead and lores, darker underparts with a green gloss, and a darker blue gloss on the upperparts. In contrast, the Silver-backed Needletail is noted for its silver or pale gray patch on the back, which is a key distinguishing feature.
White-throated Needletail · Silver-backed Needletail · My Tricky Birds