They're adorable, I can't wait to see what they look like as adults if they are mixed.
You may want to go ahead and put zip ties loosely on each goose (different colors) and change them every week or so. It's VERY helpful to be able to record which goose is which, keep track of illnesses and...
You should get a livestock dog, it won't allow your birds to roam freely forever but big, scary, protective dogs sure do help. Especially when they bark at everything that moves or makes sound. Usually by now we literally see coyotes stalking the perimeter of our yard, but with Moose (only 6...