White-capped Dipper

The white-capped dipper is 13.5 to 16.5 cm (5.3 to 6.5 in) long and weighs 38 to 59 g (1.3 to 2.1 oz). The sexes have the same plumage, but males are slightly larger than females. Adults of the nominate subspecies C. l. leucocephalus have a white crown and nape that sometimes have blackish brown streaks. The rest of their face is sooty brown with white eyelids. The sooty brown continues onto their blackish brown upperparts and tail. Their wings are mostly blackish brown with white inner webs on the secondaries. Voice: The white-capped dipper's song has been described as "a prolonged loud trill". A more detailed description is "a loud, varied warbling with some harsh phrases; remarkably audible over the rushing sound of water". Its call, usually given in flight and heard above the water noise, is "a loud, buzzy str'e'e'e'e'd (or zre'e'e'e'e'd), like high-voltage electricity".