Badger attack

Fox attack

Dog attack

Drowning

Hunger

Falling off a cliff

Rat bites

Greencough

Holly berries/deathberries (poisoning)

Lightning

Tree falling on them

Battle wounds

Hawk taking a kit

Hypothermia (dying in the cold snow)

Fire

Smoke inhalation

Bear trap

Mountain lion

Eating from the carrionplace (I believe this is a way)