Mammals:
* Deer: White-tailed deer, mule deer, red deer, fallow deer, etc.
* Rabbits: European rabbit, Eastern cottontail, Black-tailed jackrabbit, etc.
* Squirrels: Gray squirrels, fox squirrels, red squirrels, etc.
* Bears: Black bears, brown bears (depending on specific location), etc.
* Wolves: Gray wolves, coyotes, etc.
* Foxes: Red foxes, gray foxes, arctic foxes, etc.
* Raccoons:
* Badgers: American badger, European badger, etc.
* Skunks: Striped skunk, spotted skunk, etc.
* Opossums: Virginia opossum, etc.
* Rodents: Mice, rats, voles, chipmunks, etc.
* Bats: Many bat species, including brown bats, little brown bats, etc.
Birds:
* Songbirds: Robins, cardinals, blue jays, woodpeckers, etc.
* Birds of prey: Hawks, owls, falcons, etc.
* Waterfowl: Ducks, geese, swans, etc.
* Shorebirds: Sandpipers, plovers, etc.
* Wrens: House wren, Carolina wren, etc.
* Thrushes: American robin, Hermit thrush, etc.
Reptiles:
* Snakes: Garter snakes, rattlesnakes, copperheads, etc.
* Lizards: Lizards of various species, depending on location.
* Turtles: Box turtles, painted turtles, snapping turtles, etc.
Amphibians:
* Frogs: Green tree frog, bullfrog, American toad, etc.
* Salamanders: Red-spotted newt, eastern red-backed salamander, etc.
Insects:
* Bees: Honey bees, bumble bees, etc.
* Butterflies: Monarch butterfly, swallowtail butterfly, etc.
* Beetles: Many beetle species, including ladybugs, fireflies, etc.
* Ants: Many ant species, including carpenter ants, fire ants, etc.
Fish:
* Trout: Rainbow trout, brown trout, etc.
* Salmon: Salmon species, including Chinook salmon, Atlantic salmon, etc.
* Bass: Largemouth bass, smallmouth bass, etc.
This is not an exhaustive list, and the specific animals found in a mild climate will vary depending on the specific location and ecosystem.
It's important to note that mild climates can be quite diverse and include various sub-regions, such as temperate forests, grasslands, deserts, and coastal areas. Each of these environments has its own unique set of animal species.