The black-billed gull (Chroicocephalus bulleri), Buller's gull, or tarāpuka (Māori) looking for food at the riverbed of the braided Rakaia river, it’ natural habitat. It’s an endangered species of gull in the family Laridae and only found in New Zealand
A black-fronted tern (Chlidonias albostriatus) also known as sea martin, ploughboy, inland tern, riverbed tern or tarapiroe, searching the Rakaia fresh water River bed in the South Island for freshwater fish, arthropods and worms. It is declining and threatened by introduced mammals and birds. It is rated as endangered on the International Union for Conservation of Nature (IUCN)'s Red List of Threatened Species.
