- Noun:
(1) Any of several small insectivorous Old World flycatchers of the genus ''Rhipidura''.
(2) A slender bird of tropical America with olive-green upperparts and yellow underparts with white edges to the tailfeathers; ''Sylvia flavifrons''.
(3) A Polish World War II liaison aircraft produced between 1935 and 1939 and operated by Poland, Romania, Bulgaria, and Hungary until the late 1940s; the PZL P.34 Kociewiak/Wilga.