This old public domain painting is of Acrocephalus palustris, a species related to Acrocephalus orinus just rediscovered.

A bird presumed to have been extinct for well over 100 years has been rediscovered in a pristine coastal wetland in Petchaburi, on the Gulf of Thailand. The large-billed reed warbler (Acrocephalus orinus) had not been seen since 1867, when a single bird of the species was reported in the northwest of India. – Bangkok Post, March 7, 2007.

We collected two feathers from the bird for DNA tests and the result showed that it perfectly matched the DNA of the 139-year-old specimen kept at the British Museum. We never dreamed for a minute that we would rediscover a presumed-extinct species. – Philip RoundDepartment of Biology, Mahidol University, Thailand