Темноголовая иглохвостка Synallaxis tithys

An uncommon spinetail found in dry forest in western Ecuador and northwestern Peru; threatened by habitat loss. Plumage is gray with a darker face and throat, rusty wings, and a long, grayish tail. Skulks in dense tangles in the forest understory, where it is usually quite hard to see well, and sometimes hops around on the ground. Most common vocalization is a short, rising trill repeated every few seconds.