San Andres Vireo

Rather small antbird with a disjunct distribution. Males have a yellow face and underparts with a black crown, eye-line, and streaks on the breast. Females have a yellow streaked crown.  Southeastern subspecies has ochraceous lower underparts. Song is a descending and decelerating series of fluted notes becoming harsher at the end. Found in the understory of humid forests, often in areas of transitional forest or poor soils. Rarely accompanies mixed-species flocks. The similar Spix's and Peruvian Warbling-Antbirds have white breasts, and the song of Peruvian is somewhat slower-paced.

An unusual bushshrike-like bird with a heavy hooked bill, olive-green above and pale below with bold white spotting on the wings. The yellow corners of the tail can be conspicuous in flight. Found in rainforest, gallery forest, thickets, lush secondary habitat, and dense woodland. Skulking and secretive, usually remaining in tangled understory and mid-level vegetation. Very similar to Eastern Nicator, but their ranges do not overlap. Also similar to Yellow-throated Nicator, but larger, without a bright yellow throat and streak above the eye. Very vocal and most often detected by voice; the song is a quick jumble of wooden notes, and the common call is a penetrating “chaak.” 

Male has dark slaty-gray head, neck, and upper breast; rest of the body is pale gray, with white on the belly. Wings darker than mantle. Female lacks the black hood, and has a whitish supercilium, brownish-gray upperparts with lightly barred back and rump, and buff-white underparts with wide brown bars. Juvenile is similar to female, but upperparts barred white. Immature similar to female. Song is a series of clear, loud whistles: “pee-pe-pe-pe-pe-twe-twee.” Some notes can be omitted, or additional notes added.