Animal Companions that grant temporary bonus feats

[SunrypeSlim]

So I was thinking about cows. Obviously. And I got to thinking that maybe weaker animals could be more appealing choices for companions if they had bonus feats:

-Cow
Bonus Feat: Brew Potion

-Goose
Bonus Feat: Rage (monster ability)

-Mouse
Bonus Feat: Stealthy

-Canary
Bonus Feat: Resist Poison

-Alley Cat
Bonus Feat: Uncanny Dodge II