Ak Kanatlı Putu Nyctibius leucopterus

Uncommon, rarely seen potoo, active only at night. If found during the day, large white wing patches are key to identification. Occurs in tall forest, especially in hilly regions and those with sandy soils; absent from coastal and savanna areas. Roosts on branches, compressing plumage to mimic part of the tree, like other potoos. In spotlight beam, some Common Potoos may appear to have white wing patches; those of White-winged are larger and brighter. Unusual call is a long, thin, falling whistle, which does not carry far.