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Birding in Rocky Mountain National Park photo by Carl Bendorf

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Denver County Total Species Recorded: 295

Black-bellied Whistling-DuckGlaucous-winged GullPygmy Nuthatch
Fulvous Whistling-DuckGlaucous GullBrown Creeper
Snow GooseGreat Black-backed GullBlue-gray Gnatcatcher
Ross's GooseKelp GullRock Wren
Greater White-fronted GooseSooty TernCanyon Wren
Pink-footed GooseLeast TernHouse Wren
BrantCaspian TernPacific Wren
Barnacle GooseBlack TernWinter Wren
Cackling GooseCommon TernSedge Wren
Canada GooseArctic TernMarsh Wren
Trumpeter SwanForster's TernCarolina Wren
Tundra SwanRoyal TernBewick's Wren
Wood DuckSandwich TernCactus Wren
GarganeyBlack SkimmerGray Catbird
Blue-winged TealRed-throated LoonCurve-billed Thrasher
Cinnamon TealArctic LoonBrown Thrasher
Northern ShovelerPacific LoonLong-billed Thrasher
GadwallCommon LoonBendire's Thrasher
Eurasian WigeonYellow-billed LoonSage Thrasher
American WigeonWood StorkNorthern Mockingbird
MallardMagnificent FrigatebirdEuropean Starling
Mexican DuckBrown BoobyAmerican Dipper
American Black DuckAnhingaEastern Bluebird
Mottled DuckDouble-crested CormorantWestern Bluebird
Northern PintailNeotropic CormorantMountain Bluebird
Green-winged TealAmerican White PelicanTownsend's Solitaire
CanvasbackBrown PelicanVeery
RedheadAmerican BitternGray-cheeked Thrush
Ring-necked DuckLeast BitternSwainson's Thrush
Tufted DuckGreat Blue HeronHermit Thrush
Greater ScaupGreat EgretWood Thrush
Lesser ScaupSnowy EgretAmerican Robin
Harlequin DuckLittle Blue HeronRufous-backed Robin
Surf ScoterTricolored HeronVaried Thrush
White-winged ScoterReddish EgretHouse Sparrow
Black ScoterCattle EgretAmerican Pipit
Long-tailed DuckGreen HeronSprague's Pipit
BuffleheadBlack-crowned Night-HeronBrambling
Common GoldeneyeYellow-crowned Night-HeronEvening Grosbeak
Barrow's GoldeneyeWhite IbisPine Grosbeak
Hooded MerganserGlossy IbisGray-crowned Rosy-Finch
Common MerganserWhite-faced IbisBlack Rosy-Finch
Red-breasted MerganserRoseate SpoonbillBrown-capped Rosy-Finch
Ruddy DuckBlack VultureHouse Finch
Northern BobwhiteTurkey VulturePurple Finch
Scaled QuailOspreyCassin's Finch
California QuailWhite-tailed KiteCommon Redpoll
Gambel's QuailSwallow-tailed KiteHoary Redpoll
Wild TurkeyMississippi KiteRed Crossbill
Ruffed GrouseBald EagleCassia Crossbill
White-tailed PtarmiganNorthern HarrierWhite-winged Crossbill
Greater Sage-GrouseSharp-shinned HawkPine Siskin
Gunnison Sage-GrouseCooper's HawkLesser Goldfinch
Dusky GrouseNorthern GoshawkLawrence's Goldfinch
Sharp-tailed GrouseCommon Black HawkAmerican Goldfinch
Greater Prairie-ChickenHarris's HawkLapland Longspur
Lesser Prairie-ChickenVariable HawkChestnut-collared Longspur
Ring-necked PheasantRed-shouldered HawkSmith's Longspur
ChukarBroad-winged HawkThick-billed Longspur
Pied-billed GrebeSwainson's HawkSnow Bunting
Horned GrebeZone-tailed HawkCassin's Sparrow
Red-necked GrebeRed-tailed HawkGrasshopper Sparrow
Eared GrebeRough-legged HawkBlack-throated Sparrow
Western GrebeFerruginous HawkLark Sparrow
Clark's GrebeGolden EagleLark Bunting
Rock PigeonBarn OwlChipping Sparrow
Band-tailed PigeonFlammulated OwlClay-colored Sparrow
Eurasian Collared-DoveWestern Screech-OwlBlack-chinned Sparrow
Inca DoveEastern Screech-OwlField Sparrow
Common Ground DoveGreat Horned OwlBrewer's Sparrow
Ruddy Ground DoveSnowy OwlFox Sparrow
White-winged DoveNorthern Pygmy-OwlAmerican Tree Sparrow
Mourning DoveBurrowing OwlDark-eyed Junco
Groove-billed AniSpotted OwlWhite-crowned Sparrow
Greater RoadrunnerBarred OwlGolden-crowned Sparrow
Yellow-billed CuckooLong-eared OwlHarris's Sparrow
Black-billed CuckooShort-eared OwlWhite-throated Sparrow
Lesser NighthawkBoreal OwlSagebrush Sparrow
Common NighthawkNorthern Saw-whet OwlVesper Sparrow
Common PoorwillBelted KingfisherLeConte's Sparrow
Eastern Whip-poor-willLewis's WoodpeckerNelson's Sparrow
Mexican Whip-poor-willRed-headed WoodpeckerBaird's Sparrow
Black SwiftAcorn WoodpeckerHenslow's Sparrow
Chimney SwiftRed-bellied WoodpeckerSavannah Sparrow
Vaux's SwiftWilliamson's SapsuckerSong Sparrow
White-throated SwiftYellow-bellied SapsuckerLincoln's Sparrow
Mexican VioletearRed-naped SapsuckerSwamp Sparrow
Rivoli’s HummingbirdRed-breasted SapsuckerCanyon Towhee
Blue-throated Mountain-gemAmerican Three-toed WoodpeckerRufous-crowned Sparrow
Ruby-throated HummingbirdDowny WoodpeckerGreen-tailed Towhee
Black-chinned HummingbirdLadder-backed WoodpeckerSpotted Towhee
Anna's HummingbirdHairy WoodpeckerEastern Towhee
Costa's HummingbirdNorthern FlickerYellow-breasted Chat
Broad-tailed HummingbirdCrested CaracaraYellow-headed Blackbird
Rufous HummingbirdAmerican KestrelBobolink
Calliope HummingbirdMerlinChihuahuan Meadowlark
Broad-billed HummingbirdGyrfalconEastern Meadowlark
White-eared HummingbirdPeregrine FalconWestern Meadowlark
King RailPrairie FalconOrchard Oriole
Virginia RailOlive-sided FlycatcherHooded Oriole
SoraWestern Wood-PeweeStreak-backed Oriole
Common GallinuleEastern Wood-PeweeBullock's Oriole
American CootYellow-bellied FlycatcherBaltimore Oriole
Purple GallinuleAcadian FlycatcherScott's Oriole
Yellow RailAlder FlycatcherRed-winged Blackbird
Black RailWillow FlycatcherBronzed Cowbird
Sandhill CraneLeast FlycatcherBrown-headed Cowbird
Whooping CraneHammond's FlycatcherRusty Blackbird
Black-necked StiltGray FlycatcherBrewer's Blackbird
American AvocetDusky FlycatcherCommon Grackle
Black-bellied PloverCordilleran FlycatcherGreat-tailed Grackle
American Golden-PloverBuff-breasted FlycatcherOvenbird
KilldeerBlack PhoebeWorm-eating Warbler
Semipalmated PloverEastern PhoebeLouisiana Waterthrush
Piping PloverSay's PhoebeNorthern Waterthrush
Mountain PloverVermilion FlycatcherGolden-winged Warbler
Snowy PloverDusky-capped FlycatcherBlue-winged Warbler
Upland SandpiperAsh-throated FlycatcherBlack-and-white Warbler
WhimbrelGreat Crested FlycatcherProthonotary Warbler
Eskimo CurlewBrown-crested FlycatcherSwainson's Warbler
Long-billed CurlewGreat KiskadeeTennessee Warbler
Hudsonian GodwitSulphur-bellied FlycatcherOrange-crowned Warbler
Marbled GodwitTropical KingbirdLucy's Warbler
Ruddy TurnstoneCouch's KingbirdNashville Warbler
Red KnotCassin's KingbirdVirginia's Warbler
RuffThick-billed KingbirdConnecticut Warbler
Sharp-tailed SandpiperWestern KingbirdMacGillivray's Warbler
Stilt SandpiperEastern KingbirdMourning Warbler
Curlew SandpiperScissor-tailed FlycatcherKentucky Warbler
SanderlingFork-tailed FlycatcherCommon Yellowthroat
DunlinWhite-eyed VireoHooded Warbler
Purple SandpiperBell's VireoAmerican Redstart
Baird's SandpiperGray VireoCape May Warbler
Least SandpiperYellow-throated VireoCerulean Warbler
White-rumped SandpiperCassin's VireoNorthern Parula
Buff-breasted SandpiperBlue-headed VireoTropical Parula
Pectoral SandpiperPlumbeous VireoMagnolia Warbler
Semipalmated SandpiperPhiladelphia VireoBay-breasted Warbler
Western SandpiperWarbling VireoBlackburnian Warbler
Short-billed DowitcherRed-eyed VireoYellow Warbler
Long-billed DowitcherYellow-green VireoChestnut-sided Warbler
American WoodcockLoggerhead ShrikeBlackpoll Warbler
Wilson's SnipeNorthern ShrikeBlack-throated Blue Warbler
Spotted SandpiperCanada JayPalm Warbler
Solitary SandpiperPinyon JayPine Warbler
Lesser YellowlegsSteller's JayYellow-rumped Warbler
WilletBlue JayYellow-throated Warbler
Greater YellowlegsWoodhouse's Scrub-JayPrairie Warbler
Wilson's PhalaropeClark's NutcrackerGrace's Warbler
Red-necked PhalaropeBlack-billed MagpieBlack-throated Gray Warbler
Red PhalaropeAmerican CrowTownsend's Warbler
Pomarine JaegerChihuahuan RavenHermit Warbler
Parasitic JaegerCommon RavenBlack-throated Green Warbler
Long-tailed JaegerBlack-capped ChickadeeGolden-crowned Warbler
Long-billed MurreletMountain ChickadeeCanada Warbler
Ancient MurreletJuniper TitmouseWilson's Warbler
Black-legged KittiwakeHorned LarkRed-faced Warbler
Ivory GullBank SwallowPainted Redstart
Sabine's GullTree SwallowHepatic Tanager
Bonaparte's GullViolet-green SwallowSummer Tanager
Black-headed GullNorthern Rough-winged SwallowScarlet Tanager
Little GullPurple MartinWestern Tanager
Ross's GullBarn SwallowNorthern Cardinal
Laughing GullCliff SwallowPyrrhuloxia
Franklin's GullCave SwallowYellow Grosbeak
Short-billed GullBushtitRose-breasted Grosbeak
Ring-billed GullRuby-crowned KingletBlack-headed Grosbeak
Western GullGolden-crowned KingletBlue Grosbeak
California GullBohemian WaxwingLazuli Bunting
Herring GullCedar WaxwingIndigo Bunting
Iceland GullPhainopeplaVaried Bunting
Lesser Black-backed GullRed-breasted NuthatchPainted Bunting
Slaty-backed GullWhite-breasted NuthatchDickcissel