Black Sawwing vs Grey-rumped Swallow

In short

The Black Sawwing and Grey-rumped Swallow can be distinguished by their tail and rump coloration. The Black Sawwing has a uniformly dark plumage, while the Grey-rumped Swallow features a distinctive grey rump. Both species are similar in size and shape, making these color differences crucial for identification.

Identification tips

1. Look for the grey rump on the Grey-rumped Swallow, which is absent in the Black Sawwing. 2. Note the overall dark plumage of the Black Sawwing, which lacks any contrasting rump coloration.

Plumage

The Black Sawwing is entirely dark, lacking any contrasting rump coloration. In contrast, the Grey-rumped Swallow has a noticeable grey rump, which stands out against its otherwise dark plumage.