Robin

“THERE WERE THREE DOGS on the island, too—a maniacal little terrier called Fitzy that single-handedly kept the island nearly free of rats; a gigantic, imperturbable brindled mastiff named Grizzly, who had the habits of fetching the island children from the water whether they liked it or not and sometimes gently sitting on them when he thought they were being naughty or too mean toward one another; and a friendly but emotionally fragile mutt with brown body, black mask, and white socks, called Sulky, that if spoken to sharply went off in a huff and found a corner and stared at it for an hour.”
― Paul Harding, This Other Eden