マミジロミソサザイ Cantorchilus superciliaris

This brown-and-white wren has an amazingly loud voice for its size. It inhabits dry forest and scrub in western Ecuador and northwestern Peru. Note the barred wings and tail, white throat and face, and dark stripe behind the eye (which is inconspicuous on some birds). Usually stays inside dense tangles, where it can be especially hard to see during the rainy season after the vegetation leafs out. Gives a large variety of far-carrying songs and calls.