Square-tailed Nightjar vs Black-crowned Tchagra

In short

The Square-tailed Nightjar and Black-crowned Tchagra are distinct in both appearance and behavior. The nightjar is a nocturnal bird with cryptic plumage, while the tchagra is a diurnal bushshrike with a striking black crown and rufous wings. Their habitats overlap in some regions, but their activity patterns and vocalizations are quite different.

Identification tips

1. Time of Activity: If observed at night, it's likely a Square-tailed Nightjar. During the day, look for the Black-crowned Tchagra. 2. Plumage: Look for the black crown and rufous wings of the tchagra. 3. Vocalization: Listen for the nightjar's churring at night versus the tchagra's melodious song during the day. 4. Habitat: Consider the density of vegetation; tchagras prefer thicker bush.

Size

The Square-tailed Nightjar is generally smaller and more slender than the Black-crowned Tchagra.

Plumage

The Square-tailed Nightjar has mottled brown and gray plumage for camouflage, with a square tail. In contrast, the Black-crowned Tchagra features a distinctive black crown, white supercilium, and rufous wings, making it more colorful and easier to spot.

Behaviour

The nightjar is primarily nocturnal, often seen resting on the ground during the day. The tchagra is diurnal, actively foraging in bushes and low vegetation.

Habitat

Both species can be found in open woodlands and savannas, but the nightjar prefers more open, sandy areas, while the tchagra is often in denser bush and thickets.

Voice

The Square-tailed Nightjar produces a repetitive, mechanical 'churring' sound at night. The Black-crowned Tchagra has a varied, melodious song, often heard during the day.