White-browed Gnatcatcher vs Blue-grey Gnatcatcher

In short

The White-browed Gnatcatcher and Blue-gray Gnatcatcher are similar small, active birds, but they can be distinguished by their eye stripe and tail patterns. The White-browed Gnatcatcher has a distinct white supercilium, while the Blue-gray Gnatcatcher is more uniformly gray with a less pronounced eye stripe.

Identification tips

• Look for the white supercilium on the White-browed Gnatcatcher.
• Observe the tail pattern: Blue-gray Gnatcatchers have more white on the outer tail feathers.
• Consider habitat: Blue-gray Gnatcatchers are more likely in moist, wooded areas in North America.

Size

Both species are small and similar in size, but the Blue-gray Gnatcatcher is slightly more slender with a longer tail.

Plumage

The White-browed Gnatcatcher features a prominent white supercilium and darker upperparts, whereas the Blue-gray Gnatcatcher is uniformly blue-gray with a less distinct eye stripe.

Behaviour

Both species are active foragers, often seen gleaning insects from foliage. The Blue-gray Gnatcatcher may also hover or sally for insects.

Habitat

The White-browed Gnatcatcher is typically found in tropical and subtropical dry forests, while the Blue-gray Gnatcatcher prefers moist, broad-leaved woodlands and is more widespread in North America.

Voice

The Blue-gray Gnatcatcher's calls are high-pitched and nasal, whereas the White-browed Gnatcatcher's vocalizations are less well-documented but are generally similar.