What is the English name for kokako?

a kokako looks like a bird with realy long legs and that is colourful.

the kokako is mauis best friends because thet provided him with water when the sun slowed down.

so maui thanked them by giving them long legs to get food easly and so they can hop from pranch to pranch if they wanted to because they wernt the best flyers but did they know how to sing its beautifull when they sing