Chestnut-belted Gnateater vs Ash-throated Gnateater

In short

The Chestnut-belted Gnateater and Ash-throated Gnateater are similar Amazonian species, often distinguished by their range and plumage. The Chestnut-belted is typically found on the east and north banks of the Napo River, while the Ash-throated is on the west and south banks. Key differences include the male Chestnut-belted's black mask and throat, absent in the Ash-throated.

Identification tips

1. Range: Check which side of the Napo River you are on; Chestnut-belted is east/north, Ash-throated is west/south. 2. Male plumage: Look for the black mask and throat in Chestnut-belted males. 3. Female plumage: Note the bright orange-rufous underparts in Ash-throated females. 4. Behavior: Both species are territorial and forage near the ground, often in pairs.

Size

Both species are relatively small gnateaters, similar in size.

Plumage

Male Chestnut-belted Gnateaters have a distinctive black mask and throat, while Ash-throated males are gray below and over the face with a brown crown. Female Chestnut-belted lack the black mask and throat, whereas female Ash-throated have bright orange-rufous underparts and face.

Behaviour

Both species forage for insects near the ground and are usually seen in isolated pairs, exhibiting territorial behavior.

Habitat

The Chestnut-belted Gnateater is found on the east and north banks of the Napo River, while the Ash-throated is on the west and south banks. They overlap in Peru south of the Amazon.