Pacific Flatbill

The Pacific flatbill is about 15 cm (5.9 in) long and weighs 23.5 to 26.5 g (0.83 to 0.93 oz). The sexes have the same plumage. Adults have a dark olive head with a faint gray eye-ring. Their upperparts are also dark olive. Their wings and tail are dusky brown with wide tawny-buff or ochre edges on the wing coverts. The wings have olive edges on the primaries and secondaries and buff edges on the tertials. Their throat and breast are olive with faint yellow streaks; their belly and flanks are yellow with olive streaks on the flanks. Voice: The Pacific flatbill's song is "a fast descending series of either clear or burry notes, 'tchwee-tee-tee-te-tu-tu-tu' " and its call "a hissing 'schweeeuw' ".