- In reality, there are no such things as killer ducks. Ducks can however, show their defensive behavior when threatened or concerned, especially if they have ducklings around.
- The Killer Ducks seem to be Mallard Ducks.
- They are classified as genderless because of the baby ducks in The Way You Make Me Wheel. They were obviously following a mother duck and the ducks in Mime to Five are males (only male mallards have that kind of coloration).