Red-tailed Black-Cockatoo Recovery Project - Welcome The South-eastern Red-tailed Black-Cockatoo (Calyptorhynchus banksii graptogyne) is only found in south-east South Australia and south-west Victoria. With an estimated population of about 1400 birds, the South-eastern Red-tailed Black-Cockatoo is in danger of extinction. Redtail.com.au~Site InfoWhoisTrace RouteRBL Check