It appears there has been a misunderstanding. The content provided is a Wikipedia disambiguation page for the term "Kaua," which refers to various topics including locations in Mexico, a radio station call sign, and several individuals, including footballers. This content does not pertain to any bird species, and therefore cannot be rewritten into birdwatching field guide copy.
If you have information about a specific bird species you would like rewritten into a field guide format, please provide the relevant details about that species, and I would be happy to assist you.