White-collared Swift vs Sick's Swift

In short

The White-collared Swift is distinguished by its large size and bold white collar, while the Sick's Swift is smaller and uniformly brown. These species differ significantly in size and plumage, making them identifiable even in mixed flocks.

Identification tips

1. Look for the bold white collar on the White-collared Swift. 2. Compare sizes: White-collared is notably larger. 3. Observe flock behavior: White-collared Swifts often form larger flocks. 4. Note habitat: White-collared Swifts are more likely in montane areas, Sick's Swifts in open or urban areas.

Size

White-collared Swift is much larger than Sick's Swift.

Plumage

White-collared Swift has a distinctive white collar across the neck, contrasting with its dark body. Sick's Swift is entirely brown with no contrasting markings.

Behaviour

White-collared Swifts often form large flocks and can be seen flying high in the sky. Sick's Swifts are also social but tend to be seen in smaller groups.

Habitat

White-collared Swifts are found at various altitudes, often near montane forests, while Sick's Swifts are more commonly associated with open areas and urban environments.