Birds of Marys Peak
- American Vultures
- Turkey vulture
- Hawks, Eagles, Kites
- American Kestrel
- Sharp-shinned Hawk
- Cooper's Hawk
- Red-tailed Hawk
- Golden Eagle (uncommon)
- Bald Eagle (occasional)
- Northern Goshawk (uncommon)
- Grouse
- Ruffed Grouse
- Blue Grouse
- Quails
- California Quail
- Mountain Quail (possible)
- Pigeons and Doves
- Band-tailed Pigeon
- Mourning Dove
- Owls
- Barn Owl (uncommon)
- Screech Owl
- Great Horned Owl
- Pygmy Owl
- Spotted Owl
- Short-eared owl (uncommon)
- Northern Saw-whet Owl
- Goatsuckers
- Common Nighthawk
- Swifts
- Vaux's Swift
- Hummingbirds
- Rufous Hummingbird
- Anna's Hummingbird (uncommon)
- Kingfishers
- Belted Kingfisher (riparian)
- Woodpeckers
- Red-shafted flicker
- Pileated Woodpecker
- Acorn Woodpecter (uncommon)
- Red-breasted Sapsucker
- Hairy Woodpecker
- Downy Woodpecker
- Tyrant Flycatchers
- Willow Flycatcher
- Hammond's flycatcher
- Pacific-slope Flycatcher
- Western Woodpewee
- Olive-sided Flycatcher
- Swallows
- Barn Swallow
- Cliff Swallow
- Rough-winged Swallow (uncommon)
- Tree Swallow
- Purple Martin (uncommon)
- Violet-green Swallow
- Titmice, etc.
- Black-capped Chickadee
- Chestnut-backed Chickadee
- Common Bushtit
- Mountain Chickadee (uncommon)
- Nuthatches
- Red-breasted Nuthatch
- White-breasted Nuthatch (uncommon)
- Creepers
- Brown Creeper
- Wrentits
- Wrentit
- Wrens
- Berwick's Wren
- House Wren
- Winter Wren
- Thrushes, etc.
- Robin
- Hermit Thrush
- Swainson's Thrush
- Varied Thrush
- Townsend's Solitaire (uncommon)
- Western Bluebird (uncommon)
- Kinglets, etc.
- Golden-crowned Kinglet
- Ruby-crowned Kinglet
- Waxwings
- Cedar Waxwing
- Shrikes
- Northern Shrike (uncommon)
- Starlings
- Starling (uncommon)
- Vireos
- Hutton's Vireo
- Anna's
- Warbling Vireo
- Wood Warblers
- Black-throated Gray Warbler
- Hermit Warbler
- McGillivray's Warbler
- Orange-crowned Warbler
- Yellow Warbler (riparian)
- Yellow rumped Warbler
- Yellowthroat (ribarian)
- Yellow-breasted Chat (uncommon)
- Wilson's Warbler
- Weaver Finches
- House Sparrow (uncommon)
- Blackbirds, etc.
- Brewer's Blackbird
- Brown-headed Cowbird
- Bullock's Oriole (riparian)
- Western Meadowlark (uncommon)
- Tanager
- Western Tanager
- Finches, Sparrows, etc.
- Black-headed Grosbeak
- Lazuli Bunting (uncommon)
- Evening Grosbeak
- Gray-crowned Rosy Finch (uncommon, winter)
- House Finch (uncommon)
- Purple Finch
- American Goldfinch
- Lesser Goldfinch
- Pine Siskin
- Red Crossbill
- Spotted Towhee
- Slate-colored Junco (uncommon)
- Oregon Junco
- Chipping Sparrow
- Fox Sparrow
- Golden-crowned Sparrow
- Lincoln's Sparrow
- Song Sparrow
- White-crowned Sparrow
- White-throated Sparrow (uncommon)
- Lapland Longspur (uncommon)