**BLACK BITTERN Ixobrychus flavicollis

Local name Man Paiwar (Sansundi).

Range Biak.

Status Occasional visitor. On mainland New Guinea resident throughout the lowlands (Beehler & Pratt 2016). On 12 October 2012 a melanistic individual was photographed (Fig. 6) in the tsunami swamp (F. Antram, eBird checklist S98647576); 5 August 2018: one at the same site (S. Lorenz, eBird checklist S47661085). KDB in Beehler & Pratt (2016) was incorrect to assert that there is at least one specimen from Biak.