Plain-winged Woodcreeper vs Planalto Woodcreeper

In short

The Plain-winged Woodcreeper and the Planalto Woodcreeper are both members of the woodcreeper family, but they can be distinguished by their bill structure and plumage details. The Planalto Woodcreeper has a noticeably thicker and longer bill compared to the more slender bill of the Plain-winged Woodcreeper. Additionally, the Planalto Woodcreeper often shows a more barred pattern on its underparts.

Identification tips

1. Bill Structure: Look for the thicker, longer bill of the Planalto Woodcreeper. 2. Plumage Patterns: Check for barred underparts in the Planalto Woodcreeper versus the more uniform brown of the Plain-winged Woodcreeper. 3. Crown and Supercilium: Note the streaked crown and lack of supercilium in the Plain-winged Woodcreeper. 4. Behavior: Observe any ant-following behavior, which might suggest Planalto Woodcreeper.

Size

Both species are similar in size, though the Planalto Woodcreeper may appear bulkier due to its larger bill.

Plumage

The Plain-winged Woodcreeper has a more uniformly brown plumage with a streaked crown and lacks a supercilium. In contrast, the Planalto Woodcreeper often displays a barred pattern on its underparts and may have a more pronounced supercilium.

Behaviour

The Planalto Woodcreeper is sometimes seen following ant swarms, although this behavior is not as specialized as once thought. The Plain-winged Woodcreeper tends to forage more independently.

Habitat

Both species inhabit tropical forests, but the Plain-winged Woodcreeper is more restricted to the Atlantic Forest regions of Brazil. The Planalto Woodcreeper has a broader range within South America.

Voice

Vocalizations are not well-documented in the provided notes, but woodcreepers typically have distinctive calls that can aid identification.