The Selayar whistler (Pachycephala teysmanni) is a species of bird in the family Pachycephalidae. It is endemic to the small island of Selayar, which lies to the south of Sulawesi in Indonesia. It was formerly considered to be a subspecies of the rusty-breasted whistler.
The Selayar whistler was formally described in 1893 by the Swiss zoologist Johann Büttikofer based on a specimen collected by Dutch naturalist Johannes Elias Teijsmann. Büttikofer coined the binomial name Pachycephala teysmanni where the specific epithet was chosen to honour the collector.[1] Büttikofer believed the specimen had been collected in "Macassar, South Celebes" but this was an error and the type location has been redesignated as the island of Selayar which lies around south of Sulawesi.[2] [3] The Selayar whistler is monotypic. It was formerly considered to be a subspecies of the rusty-breasted whistler (Pachycephala calliope, previously Pachycephala fulvotincta) but is now considered to be a separate species based on its sexually monomorphic plumage.[4]