Andrew Walmsley / South Island pied oystercatcher (Haematopus finschi) feeding in shallow water, Christchurch, New Zealand, March

Jonathan Harrod / South Island Oystercatcher (Haematopus finschi) group flying, Avon Heathcote Estuary, Christchurch, New Zealand

Jonathan Harrod / South Island Oystercatcher (Haematopus finschi), Christchurch, New Zealand

Mike Read / South island oystercatcher (Haematopus finschi) standing on one leg on shoreline, South Island, New Zealand, December

Andrew Walmsley / New Zealand pied oystercatcher (Haematopus finschi) feeding, New Zealand, February

Andrew Walmsley / South Island pied oystercatcher (Haematopus finschi) feeding on a sandy beach, Christchurch, New Zealand, February

Andrew Walmsley / South Island pied oystercatcher (Haematopus finschi) running along beach, Christchurch, New Zealand, February

Andrew Walmsley / South Island pied oystercatcher (Haematopus finschi) at waters edge, Christchurch, New Zealand, February

Andrew Walmsley / South Island pied oystercatcher (Haematopus finschi) walking on sandy beach, Christchurch, New Zealand, May

Andrew Walmsley / South Island pied oystercatchers (Haematopus finschi) at roost on sandy beach, Christchurch, New Zealand, May

Tom Marshall / South Island pied oystercatcher (Haematopus finschi) feeding in short grass, Canterbury, New Zealand

Tom Marshall / South Island pied oystercatcher (Haematopus finschi) feeding in short grass, Canterbury, New Zealand

Andrew Walmsley / South Island pied oystercatcher (Haematopus finschi) in flight, Christchurch, South Island, New Zealand, January