Charcoal drawings can be found on limestone rock shelters in the centre of the South Island, with over 500 sites stretching from Kaikoura to North Otago. The drawings are estimated to be between 500 and 800 years old, and portray animals, humans and legendary creatures, possibly stylised reptiles. Some of the birds pictured are extinct, including moa and Haast's eagles. They were drawn by early Māori, but by the time Europeans arrived, local inhabitants did not know the origins of the drawings.