Spotted Nightjar vs White-throated Nightjar

In short

The Spotted Nightjar (Eurostopodus argus) and White-throated Nightjar (Eurostopodus mystacalis) are both medium-sized nightjars with cryptic plumage, but they can be distinguished by their throat markings and tail patterns. The Spotted Nightjar typically shows a more distinct white throat patch and spotted upperparts, while the White-throated Nightjar has a less pronounced throat patch and more uniform upperparts.

Identification tips

1. Look for the white throat patch: more distinct in Spotted Nightjar. 2. Check the upperparts: Spotted Nightjar has more pronounced spotting. 3. Consider the habitat: Spotted Nightjar prefers arid regions, while White-throated Nightjar may be in coastal areas. 4. Listen for calls: Spotted Nightjar's call is more mechanical and repetitive.

Size

Both species are similar in size, with no significant differences noted in the field.

Plumage

The Spotted Nightjar has a more prominent white throat patch and distinct spotting on the upperparts. In contrast, the White-throated Nightjar has a less distinct white throat and more uniform upperparts, lacking the pronounced spotting.

Behaviour

Both species exhibit similar nocturnal behavior, often seen hawking for insects at dusk and dawn.

Habitat

Both species inhabit open woodlands and scrublands, but the Spotted Nightjar is more often found in arid regions, whereas the White-throated Nightjar may be found in more coastal and forested areas.

Voice

The vocalizations of these species can be quite similar, but the Spotted Nightjar's call is often described as a more repetitive and mechanical series of notes compared to the White-throated Nightjar.