Which of the following animals are usually stuffed and preserved?

The correct option is All of the above.

Taxidermy is the art of preparing, stuffing, and preserving the skins of animals (especially vertebrates) for exhibition or study. This practice is commonly applied to a wide variety of animals.
Let us analyze each of the options provided:
1. Large birds: Birds, including large birds like eagles, owls, and ducks, are very commonly stuffed and preserved. Their feathers make them excellent subjects for lifelike taxidermy displays.
2. Mammals: Mammals ranging from small rodents to large game animals (like deer, bears, and foxes) are frequently stuffed and preserved for museums, educational displays, and personal collections.
3. Small lizards: Reptiles, including small lizards, can also be stuffed and preserved using modern taxidermy or freeze-drying techniques to maintain their scales, posture, and appearance.

Since large birds, mammals, and small lizards are all animals that are commonly stuffed and preserved, the correct choice is All of the above.