Mammals:
* Squirrels: Squirrels are notorious for burying and caching hazelnuts, often forgetting where they hid them.
* Mice: Mice love to nibble on hazelnuts.
* Deer: Deer will eat hazelnuts, especially in the fall when other food sources are scarce.
* Rabbits: Rabbits will occasionally eat hazelnuts, but they prefer other types of vegetation.
* Badgers: Badgers are known to forage for hazelnuts.
* Bears: Bears will eat hazelnuts, but they are not a primary food source.
Birds:
* Jays: Blue jays and other jays are known to cache hazelnuts, just like squirrels.
* Chickadees: These small birds also enjoy hazelnuts.
* Nuthatches: Nuthatches will often crack open hazelnuts on tree trunks.
* Woodpeckers: Woodpeckers will also eat hazelnuts, especially if they are already cracked open.
Insects:
* Weevils: Hazelnut weevils are a common pest that feeds on hazelnuts.
The specific animals that eat hazelnuts will vary depending on the location and the availability of other food sources.