Gulliver is a Sea Gull in Animal Crossing.In Animal Crossing (GC) he always got washed up on shore. In Animal Crossing: Wild World and then Animal Crossing: City Folk he \ was a space explorer and you could use your Slingshot to knock down his UFO.
Animal Crossing: Revoloution
In Animal Crossing Revoloution sometimes you will here a BANG coming from the front of your town,That's because he is now a Safari Hunter and he always rides on a Rhino he named Phanniiklowpassk or Gullii. Rarly he will be seen Riding on a Horse name Super Speeder of the West or Gullii II. You can talk to the animal he rides on and if you talk to Gulliver he'll give you a special item.