High Quality Content by WIKIPEDIA articles! The Agulhas Long-billed Lark (Certhilauda brevirostris) is a small passerine bird. It is an endemic resident breeder in the Western Cape, South Africa. Its restricted range is centred on the Agulhas arable farmlands, from east of the Hottentots-Holland mountain range to Mossel Bay, and occupies a maximum of 15,000 km². This lark was formerly considered as a subspecies of Cape Long-billed Lark, Certhilauda curvirostris until it, with three other subspecies, was elevated to species status (Sibley and Monroe 1990, 1993).