Many creatures call the Mill Race home:
Native fish – Chinook Salmon, Cutthroat Trout, Largescale Sucker, Oregon Chub, Pacific Lamprey, Prickly Sculpin, Rainbow Trout, Redsided Shiner, Speckled Dace, Threespine Stickleback, Torrent Sculpin, Western Brook Lamprey. Non-native – Brown Bullhead, Green Sunfish, Largemouth Bass, Mosquitofish, Northern Pikeminnow, Pumpkinseed, Sunfish, White Crappie.
Birds (from most common to least common) – Cackling Goose, Violet-green Swallow, Red-winged Blackbird, Tree Swallow, European Starling, American Robin, American Goldfinch, Greater White-fronted Goose, Yellow-rumped Warbler, Mallard & Wood Duck, Cedar Waxwing, Golden-crowned Sparrow, American Wigeon, Ring-necked Duck, Barn Swallow, Lesser Goldfinch, Canada Goose, Gadwall, Wilson’s Snipe, Brewer’s Blackbird, Bushtit, Song Sparrow, Green-winged Teal, Purple Finch, Pine Siskin, Dark-eyed Junco, American Coot, Orange-crowned Warbler, Killdeer, Bufflehead, Common & Hooded Merganser, Northern Shoveler, Common Yellowthroat, Pied-billed Grebe, Ruby-crowned Kinglet, Evening Grosbeak, White-crowned Sparrow, Lazuli Bunting, and more.
Mammals – Beaver, bobcat, deer, cougar, raccoon, squirrel, and fox. Non-native – Nutria.
Amphibians – Rough-skinned Newt, Western Pond Turtle, and snails. Non-native – American Bullfrog.
Water bugs – Aquatic Beetles, Backswimmer, Caddisfly, Damselfly, Dragonfly, Mayfly, Scud, Water Boatman, and more.