The Straight-billed Woodcreeper is common in open woodland, scrub, and river edge forest. Its very pale, straight bill and face and throat are the most distinctive features, but visual separation from other species, particularly Zimmer's Woodcreeper (Dendroplex kienerii), can be challenging. The song is subtly diagnostic, a fast accelerating and descending trill given throughout the day. Individuals or pairs forage along smaller trunks and limbs at lower levels, often joining mixed-species flocks. This species is widespread, and is distributed from Panama south through central South America and to northeastern Brazil.