Wedge-billed Woodcreeper vs Cocoa Woodcreeper

In short

The Wedge-billed Woodcreeper (Glyphorynchus spirurus) is best identified by its distinctive short, wedge-shaped bill, while the Cocoa Woodcreeper (Xiphorhynchus susurrans) has a longer, more decurved bill. Both species are brown woodcreepers, but their bill shapes are the most reliable field marks. Vocalizations differ, with the Wedge-billed having a dry, scratchy call.

Identification tips

• Check bill shape: Wedge-billed has a short, wedge-shaped bill; Cocoa has a longer, decurved bill.
• Size and structure: Wedge-billed is smaller and more compact.
• Listen for calls: Wedge-billed has a dry, scratchy call.
• Observe behavior: Wedge-billed often joins mixed-species flocks.

Size

The Wedge-billed Woodcreeper is generally smaller and more compact than the Cocoa Woodcreeper.

Plumage

Both species are primarily brown, but the Wedge-billed Woodcreeper may appear slightly plainer overall. The Cocoa Woodcreeper often shows more contrast with a slightly buffy throat.

Behaviour

Wedge-billed Woodcreepers are often seen in mixed-species flocks and are known for gleaning insects from bark. Cocoa Woodcreepers also forage on tree trunks but may be more solitary.

Habitat

Both species inhabit tropical forests, but the Wedge-billed Woodcreeper is more frequently associated with mixed-species flocks, indicating a preference for diverse forest environments.

Voice

The Wedge-billed Woodcreeper has a dry, scratchy call, while the Cocoa Woodcreeper's vocalizations are less well-documented but generally include a series of whistles.