Most of the birds were ground nesting birds and the mongoose took advantage of that along the way almost making the Nene (Hawaii's state bird) extinct. On the islands that were populated with mongoose we only seen doves, pigeons and the wild chickens on a regular basis. There was another bird or two occasionally.
This was the only four legged wildlife we encountered in Hawaii except for the wild bore. We did see three of those but by the time I changed lens the moment had passed without a shot. I did not find any other four leg critters at Hawaii when I researched it before the trip and if there is any I missed them.