About Cyclarhis nigrirostris Lafresnaye, 1842
This species, Cyclarhis nigrirostris Lafresnaye, 1842, is olive-colored overall, with grey throat, belly, cheek, and forecrown, and a rufous stripe running above the eye and lore. It can be distinguished from the more common Rufous-browed peppershrike by its black-tipped bill, thinner rufous superciliary stripe, and olive neck and cap. The black-billed peppershrike occurs in the Andes of Colombia and Ecuador.