--During observations in Kenya in 1961, I reported (Monroe, Auk, 81:91-92, 1964) wing-flashing in the turdine Erythropygla zambesiana; this behavior appeared in all respects identical or closely similar to that of the Mockingbird (Mimus polyglottos). I know of no other report of mimid-type wing-flashing in a non-mimid. While in Australia recently, I observed wing-flashing in the Black-and-white Fantail, or "Willie Wagtail" (Rhipidura leucophrys), an Old World flycatcher (Muscicapinac of the Muscicapidac). On 1 August 1972 in a park on the outskirts of Adelaide, South Australia, I watched three individual fantails wing-flashing for about ten minutes. Titis species feeds primarily on the ground, with foraging accompanied by the exaggerated tail-wagging associated with the species. The wing-flashing in all cases noted (some 35 individual observations among the three birds) appeared identical to that of the Mocking- bird. Upon alighting, the individual fantail would immediately execute the wing-flashing behavior; in each instance it was accomplished with a single "hitch," a momentary pause close to the body as the wings were extended. Following the pause, the wings were then rapidly and fully extended in the usual slanting plane of about 45' to 60 ø with reference to the horlzonta]. The entire pattern involved about one second and was accomplished with the tail cocked about 30 ø to 45 ø to the horizontal; there was no noticeable lateral movement of the tail during flashing, but the individual would often tail-wag vigorously immediately following the flash. The behavior appeared entirely homologous to that of the mimids as well as that I observed in the African Erythropygia. Although there is no white in the wings of R. leucophrys, the inner webs of the prlmarics arc pale gray, resulting in full sunlight in a noticeable flash as the wings arc extended. On 13 August 1972 I noted another individual fantail wing-flashing in a park in Brisbane, Queensland. This individual, also performing in open sunlight, flashed three times in about one minute of observation, but in this instance no hitch or pause was noted; in other respects, the procedure was closely similar to that of the birds in Adelaide. During my three weeks in Australia spanning the period of the above observations, I noted more than 250 individuals of this species. The wing-flashing behavior was not otherwise observed, although I watched specifically for it. The behavior does, however, appear to bc widespread among the passerinc groups of this complex (muscicapid-mimid), geographically as well as taxonomically.--BUaT L. MONaOE, Ja., Department o/ Biology, University o/Louisville, Louisville, Kentucky 40208, 30 October 1972.