It appears there has been a misunderstanding. The content provided is a Wikipedia disambiguation page for the term "Kaua," which includes references to localities in Mexico, a radio station call sign, and several individuals, including football players and a politician. 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 to be rewritten into a field guide format, please provide the relevant details about that species, and I would be happy to assist you.