knysnasmygsångare Bradypterus sylvaticus

A skulky, dark olive-brown warbler with a graduated tail and plain dark underparts (sometimes with fine streaking). It creeps around mouse-like in thick undergrowth and tangles in forest, forest edge, and coastal thickets. It is frequently detected and identified by its song, mostly delivered between August and November, which comprises a series of accelerating “tslip” notes that culminate in a reedy trill. The similar Barratt’s Warbler differs from Knysna Warbler by its longer tail, paler underparts, more pronounced throat streaking, and different song.