Birds

Birds come in many forms and colors. Usually, they are peaceful and no danger to anyone. However, there are some species of birds of prey, which won't hesitate to attack anyone daring to enter their area. Some birds are quite smart, parrots for example can even master language. A special case are Vultures.

Birds live everywhere in the wilderness.

Lore
This type of creature is not openly hostile to human beings, but many will probably attack if provoked or frightened.

- from "Fellowship", Ultima VII

Evolution in the series
Once introduced in Ultima VI, there was little change, apart from the improved graphical appearance.