I got 2 black labs, who love to hunt and swim, and my wife has a tea cup chihuahua.
My oldest lab is "Pretty" she is about 10 years old, and is starting to show her age. She will sit completely still in the front yard, till the birds come down and start drinking out of our fountain, then she pounces, I bet through the years, she caught 25 birds that way.
"Bella", is my 6 month old puppy, and she is probably going to replace pretty when I go hunting this fall. Loves to swim and hunt.
Then "hell dog", Skrappy, we have owned that dog for two years, and yet he still dont let anybody pet him except for my wife.