Birds to See in United States in October
257 bird species on our list for United States are recorded regularly in October
Of these, the most often recorded are Blue Jay, American Crow, Northern Cardinal, American Robin and House Finch. New this month: American Tree Sparrow, Red-breasted Merganser, Long-tailed Duck and Tundra Swan and 10 more.
On the move in October
GBIF · OctArriving
At their peak
Ruby-crowned KingletBusiest month of the year · Sep–Jul
Palm WarblerBusiest month of the year · Sep–May
Lincoln's SparrowBusiest month of the year · All year
Sharp-shinned HawkBusiest month of the year · All year
MerlinBusiest month of the year · All year
Pacific Golden-PloverBusiest month of the year · All year
From United States’s bird records, 2019–2024: arriving birds are regular this month but not last; leaving birds are regular this month but not next.
Other months
All 257 birds in October
257 birds
Blue JayCyanocitta cristataResidentCommon25–30 cmRecorded all year · 2.81% in Oct
American CrowCorvus brachyrhynchosResidentCommon41–53 cmRecorded all year · 2.59% in Oct
Northern CardinalCardinalis cardinalisResidentCommon21–23 cmRecorded all year · 2.27% in Oct
American RobinTurdus migratoriusResidentCommon20–28 cmRecorded all year · 1.94% in Oct
House FinchHaemorhous mexicanusResidentCommon13–15 cmRecorded all year · 1.86% in Oct
Red-bellied WoodpeckerMelanerpes carolinusResidentCommon23–26 cmRecorded all year · 1.84% in Oct
Downy WoodpeckerDryobates pubescensResidentCommon14–18 cmRecorded all year · 1.82% in Oct
Mourning DoveZenaida macrouraResidentCommon23–34 cmRecorded all year · 1.81% in Oct
Yellow-rumped WarblerSetophaga coronataResidentCommon12–15 cmRecorded all year · 1.77% in Oct
Northern FlickerColaptes auratusResidentCommon28–31 cmRecorded all year · 1.74% in Oct
Song SparrowMelospiza melodiaResidentCommon12–17 cmRecorded all year · 1.73% in Oct
Canada GooseBranta canadensisResidentCommon76–110 cmRecorded all year · 1.51% in Oct
Common StarlingSturnus vulgarisResidentCommon21–23 cmRecorded all year · 1.45% in Oct
White-breasted NuthatchSitta carolinensisResidentCommon13–14 cmRecorded all year · 1.45% in Oct
Turkey VultureCathartes auraResidentCommon62–81 cmRecorded all year · 1.40% in Oct
MallardAnas platyrhynchosResidentCommon50–65 cmRecorded all year · 1.39% in Oct
Tufted TitmouseBaeolophus bicolorResidentCommon14–17 cmRecorded all year · 1.35% in Oct
Northern MockingbirdMimus polyglottosResidentCommon21–26 cmRecorded all year · 1.33% in Oct
Great Blue HeronArdea herodiasResidentCommon91–137 cmRecorded all year · 1.26% in Oct- Ruby-crowned KingletCorthylio calendulaWinter visitorCommon9–11 cmRegularly Sep–Jul · 1.24% in Oct
Red-winged BlackbirdAgelaius phoeniceusResidentCommon17–23 cmRecorded all year · 1.19% in Oct
House SparrowPasser domesticusResidentCommon14–17 cmRecorded all year · 1.11% in Oct
Red-tailed HawkButeo jamaicensisResidentCommon45–65 cmRecorded all year · 1.04% in Oct
White-crowned SparrowZonotrichia leucophrysResidentCommon15–16 cmRecorded all year · 0.97% in Oct
Eastern BluebirdSialia sialisResidentCommon16–21 cmRecorded all year · 0.87% in Oct
Great White EgretArdea albaResidentCommon80–104 cmRecorded all year · 0.81% in Oct
Ring-billed GullLarus delawarensisResidentCommon43–54 cmRecorded all year · 0.79% in Oct
Gray CatbirdDumetella carolinensisSummer visitorCommon20–24 cmRecorded all year · 0.79% in Oct
Common RavenCorvus coraxResidentCommon54–67 cmRecorded all year · 0.77% in Oct
Rock DoveColumba liviaResidentCommon29–37 cmRecorded all year · 0.65% in Oct
Bald EagleHaliaeetus leucocephalusResidentCommon70–102 cmRecorded all year · 0.64% in Oct
Hairy WoodpeckerLeuconotopicus villosusResidentCommon18–26 cmRecorded all year · 0.62% in Oct- Palm WarblerSetophaga palmarumWinter visitorCommon12–14 cmRegularly Sep–May · 0.58% in Oct
Common GrackleQuiscalus quisculaSummer visitorCommon28–34 cmRecorded all year · 0.54% in Oct
Swamp SparrowMelospiza georgianaResidentCommon12–15 cmRecorded all year · 0.53% in Oct
Pied-billed GrebePodilymbus podicepsWinter visitorCommon31–38 cmRecorded all year · 0.53% in Oct
Common YellowthroatGeothlypis trichasSummer visitorCommon11–13 cmRecorded all year · 0.52% in Oct
Chipping SparrowSpizella passerinaResidentCommon12–15 cmRecorded all year · 0.51% in Oct
Cedar WaxwingBombycilla cedrorumResidentCommon15–18 cmRecorded all year · 0.50% in Oct
Pileated WoodpeckerDryocopus pileatusResidentCommon40–49 cmRecorded all year · 0.50% in Oct
American Herring GullLarus smithsonianusResidentCommon53–65 cmRecorded all year · 0.49% in Oct
OspreyPandion haliaetusResidentCommon54–58 cmRecorded all year · 0.42% in Oct
Hermit ThrushCatharus guttatusResidentUncommon14–18 cmRecorded all year · 0.40% in Oct
Wood DuckAix sponsaResidentCommon47–54 cmRecorded all year · 0.40% in Oct
Eurasian TealAnas creccaWinter visitorUncommon34–38 cmRecorded all year · 0.35% in Oct
Yellow-bellied SapsuckerSphyrapicus variusResidentUncommon19–22 cmRecorded all year · 0.35% in Oct
Eurasian Collared DoveStreptopelia decaoctoResidentUncommon30–32 cmRecorded all year · 0.33% in Oct- Lincoln's SparrowMelospiza lincolniiWinter visitorUncommon13–15 cmRecorded all year · 0.31% in Oct
Greater YellowlegsTringa melanoleucaResidentUncommon29–40 cmRecorded all year · 0.31% in Oct
Northern ShovelerSpatula clypeataWinter visitorCommon44–51 cmRecorded all year · 0.30% in Oct
Orange-crowned WarblerLeiothlypis celataResidentUncommon11–14 cmRecorded all year · 0.29% in Oct
GadwallMareca streperaResidentCommon46–56 cmRecorded all year · 0.29% in Oct- Sharp-shinned HawkAccipiter striatusWinter visitorUncommon24–34 cmRecorded all year · 0.28% in Oct
Pine SiskinSpinus pinusResidentUncommon11–14 cmRecorded all year · 0.28% in Oct
Fish CrowCorvus ossifragusResidentCommon36–41 cmRecorded all year · 0.26% in Oct
Ruddy DuckOxyura jamaicensisWinter visitorUncommon35–43 cmRecorded all year · 0.24% in Oct
American RedstartSetophaga ruticillaSummer visitorCommon11–14 cmRegularly Apr–Oct · 0.23% in Oct- MerlinFalco columbariusWinter visitorUncommon24–33 cmRecorded all year · 0.22% in Oct
Northern PintailAnas acutaWinter visitorUncommon59–76 cmRecorded all year · 0.20% in Oct
Sandhill CraneAntigone canadensisResidentUncommon80–122 cmRecorded all year · 0.20% in Oct
Great Black-backed GullLarus marinusResidentUncommon64–79 cmRecorded all year · 0.20% in Oct
Say's PhoebeSayornis sayaResidentUncommon17–20 cmRecorded all year · 0.19% in Oct
Common LoonGavia immerResidentUncommon66–91 cmRecorded all year · 0.18% in Oct
Peregrine FalconFalco peregrinusResidentUncommon34–58 cmRecorded all year · 0.18% in Oct
Ruby-throated HummingbirdArchilochus colubrisSummer visitorCommon7–9 cmRegularly Apr–Oct · 0.18% in Oct
Western MeadowlarkSturnella neglectaResidentUncommon16–26 cmRecorded all year · 0.18% in Oct
Blue-headed VireoVireo solitariusResidentUncommon12–15 cmRecorded all year · 0.17% in Oct
Marsh WrenCistothorus palustrisResidentUncommon10–14 cmRecorded all year · 0.17% in Oct
American Black DuckAnas rubripesWinter visitorUncommon54–59 cmRecorded all year · 0.17% in Oct
Least SandpiperCalidris minutillaWinter visitorCommon13–15 cmRegularly Jul–May · 0.17% in Oct
Wild TurkeyMeleagris gallopavoResidentUncommon100–125 cmRecorded all year · 0.17% in Oct
Fox SparrowPasserella iliacaWinter visitorUncommon15–19 cmRecorded all year · 0.17% in Oct
Grey PloverPluvialis squatarolaResidentUncommon27–30 cmRecorded all year · 0.17% in Oct
Tennessee WarblerLeiothlypis peregrinaPassage migrantUncommon10–13 cmRegularly Apr–Nov · 0.16% in Oct
Mute SwanCygnus olorResidentUncommon140–160 cmRecorded all year · 0.16% in Oct
Magnolia WarblerSetophaga magnoliaSummer visitorUncommon11–13 cmRegularly Apr–Oct · 0.16% in Oct
White-winged DoveZenaida asiaticaResidentUncommon27–30 cmRecorded all year · 0.16% in Oct
Barn SwallowHirundo rusticaSummer visitorCommon17–19 cmRegularly Mar–Oct · 0.15% in Oct
Acorn WoodpeckerMelanerpes formicivorusResidentUncommon20–24 cmRecorded all year · 0.15% in Oct
Great Horned OwlBubo virginianusResidentUncommon46–63 cmRecorded all year · 0.14% in Oct
Swainson's ThrushCatharus ustulatusSummer visitorUncommon16–20 cmRegularly Apr–Oct · 0.14% in Oct
Nuttall's WoodpeckerDryobates nuttalliiResidentUncommon17–18 cmRecorded all year · 0.14% in Oct
Nashville WarblerLeiothlypis ruficapillaSummer visitorUncommon11–13 cmRegularly Apr–Nov · 0.14% in Oct
Forster's TernSterna forsteriResidentUncommon33–36 cmRecorded all year · 0.14% in Oct
Black-throated Blue WarblerSetophaga caerulescensSummer visitorUncommon11–13 cmRegularly Apr–Oct · 0.13% in Oct
SanderlingCalidris albaResidentUncommon18–20 cmRecorded all year · 0.13% in Oct
Black-throated Green WarblerSetophaga virensSummer visitorUncommon11–12 cmRegularly Apr–Oct · 0.13% in Oct
Black-crowned Night-heronNycticorax nycticoraxResidentUncommon58–65 cmRecorded all year · 0.13% in Oct
WilletTringa semipalmataResidentUncommon33–41 cmRecorded all year · 0.12% in Oct
Surf ScoterMelanitta perspicillataWinter visitorUncommon48–60 cmRecorded all year · 0.12% in Oct
Common MerganserMergus merganserWinter visitorUncommon58–68 cmRecorded all year · 0.12% in Oct
Blackpoll WarblerSetophaga striataPassage migrantUncommon13–15 cmRegularly Apr–Oct · 0.12% in Oct
Red-headed WoodpeckerMelanerpes erythrocephalusResidentUncommon19–23 cmRecorded all year · 0.12% in Oct
DunlinCalidris alpinaWinter visitorUncommon16–22 cmRegularly Sep–Jun · 0.12% in Oct
Rose-breasted GrosbeakPheucticus ludovicianusSummer visitorCommon18–22 cmRegularly Apr–Oct · 0.11% in Oct
Lesser YellowlegsTringa flavipesSummer visitorUncommon23–27 cmRecorded all year · 0.11% in Oct
Horned LarkEremophila alpestrisResidentUncommon16–20 cmRecorded all year · 0.10% in Oct
Long-billed DowitcherLimnodromus scolopaceusResidentUncommon27–30 cmRecorded all year · 0.10% in Oct
Barred OwlStrix variaResidentUncommon43–50 cmRecorded all year · 0.10% in Oct
Hooded MerganserLophodytes cucullatusWinter visitorCommon40–49 cmRecorded all year · 0.10% in Oct
Cape May WarblerSetophaga tigrinaPassage migrantUncommon12–14 cmRegularly Apr–Oct · 0.10% in Oct
Cackling GooseBranta hutchinsiiWinter visitorUncommon53–76 cmRegularly Sep–Jun · 0.10% in Oct
Semipalmated PloverCharadrius semipalmatusSummer visitorUncommon17–19 cmRecorded all year · 0.09% in Oct
Black-necked GrebePodiceps nigricollisResidentUncommon28–34 cmRecorded all year · 0.09% in Oct
Cattle EgretArdea ibisResidentUncommon46–56 cmRecorded all year · 0.09% in Oct
Horned GrebePodiceps auritusWinter visitorUncommon31–38 cmRegularly Sep–May · 0.09% in Oct
Bonaparte's GullChroicocephalus philadelphiaWinter visitorUncommon28–38 cmRecorded all year · 0.08% in Oct
Ladder-backed WoodpeckerDryobates scalarisResidentUncommon16–19 cmRecorded all year · 0.08% in Oct
Gila WoodpeckerMelanerpes uropygialisResidentUncommon20–25 cmRecorded all year · 0.08% in Oct
OvenbirdSeiurus aurocapillaSummer visitorCommon12–15 cmRegularly Apr–Oct · 0.08% in Oct
American AvocetRecurvirostra americanaResidentUncommon43–51 cmRecorded all year · 0.08% in Oct
Northern Yellow WarblerSetophaga aestivaSummer visitorCommon12–13 cmRegularly Apr–Oct · 0.08% in Oct
Scissor-tailed FlycatcherTyrannus forficatusSummer visitorUncommon28–38 cmRegularly Mar–Dec · 0.07% in Oct
Pacific WrenTroglodytes pacificusResidentUncommon8–12 cmRecorded all year · 0.07% in Oct
Bay-breasted WarblerSetophaga castaneaPassage migrantUncommon14–14 cmRegularly Apr–Oct · 0.07% in Oct
Vesper SparrowPooecetes gramineusResidentUncommon13–17 cmRecorded all year · 0.07% in Oct
Pectoral SandpiperCalidris melanotosSummer visitorUncommon19–23 cmRegularly Mar–Nov · 0.07% in Oct
Ruddy TurnstoneArenaria interpresResidentUncommon21–24 cmRecorded all year · 0.07% in Oct
Greater White-fronted GooseAnser albifronsWinter visitorUncommon64–81 cmRegularly Aug–Jun · 0.07% in Oct
Marbled GodwitLimosa fedoaResidentUncommon40–50 cmRecorded all year · 0.07% in Oct
Western SandpiperCalidris mauriSummer visitorUncommon14–17 cmRecorded all year · 0.06% in Oct
Scarlet TanagerPiranga olivaceaSummer visitorUncommon16–19 cmRegularly Apr–Oct · 0.06% in Oct
American Tree SparrowSpizelloides arboreaWinter visitorUncommon14–17 cmRegularly Oct–Apr · 0.06% in Oct
Lesser Black-backed GullLarus fuscusWinter visitorUncommon52–64 cmRecorded all year · 0.06% in Oct
Trumpeter SwanCygnus buccinatorResidentUncommon139–157 cmRecorded all year · 0.06% in Oct
Snow GooseAnser caerulescensWinter visitorUncommon69–84 cmRegularly Sep–Jun · 0.06% in Oct
Franklin's GullLeucophaeus pipixcanSummer visitorUncommon32–36 cmRegularly Mar–Dec · 0.05% in Oct
Virginia RailRallus limicolaResidentUncommon20–27 cmRecorded all year · 0.05% in Oct
Red-breasted MerganserMergus serratorWinter visitorUncommon52–58 cmRegularly Oct–Jun · 0.05% in Oct
Scaly-breasted MuniaLonchura punctulataResidentUncommon11–12 cmRecorded all year · 0.05% in Oct
Common PheasantPhasianus colchicusResidentUncommon50–90 cmRecorded all year · 0.05% in Oct
Varied ThrushIxoreus naeviusResidentUncommon20–26 cmRecorded all year · 0.05% in Oct
Broad-winged HawkButeo platypterusSummer visitorUncommon34–44 cmRegularly Mar–Nov · 0.05% in Oct
EiderSomateria mollissimaResidentUncommon50–71 cmRecorded all year · 0.04% in Oct
Lark SparrowChondestes grammacusResidentUncommon15–17 cmRecorded all year · 0.04% in Oct
Chestnut-sided WarblerSetophaga pensylvanicaSummer visitorUncommon10–14 cmRegularly Apr–Oct · 0.04% in Oct
Northern WaterthrushParkesia noveboracensisSummer visitorUncommon12–15 cmRegularly Apr–Oct · 0.04% in Oct
Greater ScaupAythya marilaWinter visitorUncommon39–56 cmRegularly Sep–Jun · 0.04% in Oct
Greater RoadrunnerGeococcyx californianusResidentUncommon52–54 cmRecorded all year · 0.04% in Oct
Cinnamon TealSpatula cyanopteraResidentUncommon36–43 cmRecorded all year · 0.04% in Oct
Red-necked GrebePodiceps grisegenaResidentUncommon40–50 cmRecorded all year · 0.04% in Oct
Muscovy DuckCairina moschataResidentUncommon66–84 cmRecorded all year · 0.04% in Oct
Red CrossbillLoxia curvirostraResidentUncommon15–17 cmRecorded all year · 0.04% in Oct
Eastern Screech-owlMegascops asioResidentUncommon16–25 cmRecorded all year · 0.04% in Oct
Semipalmated SandpiperCalidris pusillaSummer visitorUncommon15–18 cmRegularly Apr–Oct · 0.04% in Oct
Northern GannetMorus bassanusWinter visitorUncommon87–100 cmRecorded all year · 0.04% in Oct
Short-billed DowitcherLimnodromus griseusSummer visitorUncommon23–32 cmRecorded all year · 0.04% in Oct
Mountain BluebirdSialia currucoidesResidentUncommon15–18 cmRecorded all year · 0.04% in Oct
Red-naped SapsuckerSphyrapicus nuchalisResidentRare19–21 cmRecorded all year · 0.04% in Oct
Evening GrosbeakHesperiphona vespertinaResidentUncommon16–22 cmRecorded all year · 0.04% in Oct
Clay-colored SparrowSpizella pallidaSummer visitorUncommon13–15 cmRecorded all year · 0.03% in Oct
Red-breasted SapsuckerSphyrapicus ruberResidentUncommon19–22 cmRecorded all year · 0.03% in Oct
WhimbrelNumenius phaeopusResidentUncommon40–46 cmRecorded all year · 0.03% in Oct
Red-throated LoonGavia stellataWinter visitorUncommon53–69 cmRecorded all year · 0.03% in Oct
Brent GooseBranta berniclaWinter visitorUncommon55–66 cmRegularly Oct–Jun · 0.03% in Oct
Golden EagleAquila chrysaetosResidentRare66–102 cmRecorded all year · 0.03% in Oct
Golden-fronted WoodpeckerMelanerpes aurifronsWinter visitorUncommon21–26 cmRecorded all year · 0.03% in Oct
Sooty ShearwaterArdenna griseaSummer visitorUncommon40–51 cmRegularly Apr–Nov · 0.03% in Oct
Gray-cheeked ThrushCatharus minimusSummer visitorUncommon16–17 cmRegularly Apr–Oct · 0.03% in Oct
Glossy IbisPlegadis falcinellusResidentUncommon48–66 cmRecorded all year · 0.03% in Oct
Sandwich TernThalasseus sandvicensisResidentRare36–41 cmRecorded all year · 0.03% in Oct
Pacific LoonGavia pacificaResidentRare58–74 cmRecorded all year · 0.03% in Oct
DickcisselSpiza americanaSummer visitorUncommon14–16 cmRegularly Apr–Oct · 0.03% in Oct
Lapland LongspurCalcarius lapponicusResidentRare15–16 cmRecorded all year · 0.03% in Oct
Ruffed GrouseBonasa umbellusResidentRare41–50 cmRecorded all year · 0.03% in Oct
Pomarine JaegerStercorarius pomarinusSummer visitorRare46–51 cmRegularly Apr–Feb · 0.02% in Oct
Solitary SandpiperTringa solitariaPassage migrantUncommon19–23 cmRegularly Apr–Oct · 0.02% in Oct
Common TernSterna hirundoSummer visitorUncommon31–35 cmRegularly Apr–Oct · 0.02% in Oct
Arctic JaegerStercorarius parasiticusSummer visitorRare41–46 cmRegularly May–Feb · 0.02% in Oct
American Golden-PloverPluvialis dominicaPassage migrantRare24–28 cmRegularly Mar–Nov · 0.02% in Oct
BobolinkDolichonyx oryzivorusSummer visitorUncommon16–20 cmRegularly Apr–Oct · 0.02% in Oct
Snow BuntingPlectrophenax nivalisWinter visitorUncommon15–18 cmRegularly Jun–Mar · 0.02% in Oct
American BitternBotaurus lentiginosusResidentRare58–85 cmRecorded all year · 0.02% in Oct
Red-necked PhalaropePhalaropus lobatusSummer visitorUncommon18–19 cmRegularly Apr–Oct · 0.02% in Oct- Pacific Golden-PloverPluvialis fulvaWinter visitorRare23–26 cmRecorded all year · 0.02% in Oct
Egyptian GooseAlopochen aegyptiacaResidentRare63–73 cmRecorded all year · 0.02% in Oct
FulmarFulmarus glacialisResidentRare45–50 cmRecorded all year · 0.02% in Oct
Stilt SandpiperCalidris himantopusWinter visitorUncommon18–23 cmRegularly Jul–May · 0.02% in Oct
Philadelphia VireoVireo philadelphicusPassage migrantUncommon11–13 cmRegularly Apr–Oct · 0.02% in Oct
Long-tailed DuckClangula hyemalisWinter visitorUncommon37–60 cmRegularly Oct–Jun · 0.02% in Oct
Rough-legged HawkButeo lagopusWinter visitorUncommon46–59 cmRegularly Oct–Apr · 0.02% in Oct
Monk ParakeetMyiopsitta monachusResidentRare29–31 cmRecorded all year · 0.02% in Oct
Eurasian WigeonMareca penelopeWinter visitorRare42–51 cmRegularly Sep–Jun · 0.02% in Oct
Tundra SwanCygnus columbianusWinter visitorUncommon120–150 cmRegularly Oct–Jun · 0.02% in Oct
Painted BuntingPasserina cirisSummer visitorUncommon12–14 cmRegularly Dec–Oct · 0.02% in Oct
Piping PloverCharadrius melodusSummer visitorUncommon17–18 cmRecorded all year · 0.02% in Oct
Sabine's GullXema sabiniSummer visitorRare27–33 cmRegularly Apr–Oct · 0.01% in Oct
Red KnotCalidris canutusResidentRare23–26 cmRecorded all year · 0.01% in Oct
White-rumped SandpiperCalidris fuscicollisSummer visitorRare15–18 cmRegularly Apr–Nov · 0.01% in Oct
Great CormorantPhalacrocorax carboWinter visitorRare80–100 cmRecorded all year · 0.01% in Oct
Lewis's WoodpeckerMelanerpes lewisResidentRare26–28 cmRecorded all year · 0.01% in Oct
Burrowing OwlAthene cuniculariaResidentRare19–25 cmRecorded all year · 0.01% in Oct
Eurasian Tree SparrowPasser montanusResidentRare13–14 cmRecorded all year · 0.01% in Oct
Red JunglefowlGallus gallusResidentRare42–75 cmRecorded all year · 0.01% in Oct
Iceland GullLarus glaucoidesWinter visitorUncommon52–60 cmRegularly Oct–Apr · 0.01% in Oct
KittiwakeRissa tridactylaResidentRare37–41 cmRecorded all year · 0.01% in Oct
Northern Saw-whet OwlAegolius acadicusWinter visitorRare17–21 cmRecorded all year · 0.01% in Oct
Hudsonian GodwitLimosa haemasticaSummer visitorRare36–42 cmRegularly Apr–Nov · 0.01% in Oct
Grey PhalaropePhalaropus fulicariusResidentRare20–22 cmRecorded all year · 0.01% in Oct
Baird's SandpiperCalidris bairdiiPassage migrantUncommon14–17 cmRegularly Apr–Oct · 0.01% in Oct
Gilded FlickerColaptes chrysoidesResidentRare28–31 cmRecorded all year · 0.01% in Oct
Common RedpollAcanthis flammeaWinter visitorUncommon12–14 cmRegularly Oct–Aug · 0.01% in Oct
Black GuillemotCepphus grylleResidentRare30–32 cmRecorded all year · 0.01% in Oct
Western Screech-owlMegascops kennicottiiResidentRare19–25 cmRecorded all year · 0.01% in Oct
Northern Pygmy-owlGlaucidium gnomaResidentRare15–17 cmRecorded all year · 0.01% in Oct
Ross's GooseAnser rossiiWinter visitorRare57–64 cmRegularly Oct–Apr · 0.01% in Oct
White-headed WoodpeckerPicoides albolarvatusSummer visitorRare20–23 cmRecorded all year · 0.01% in Oct
Short-eared OwlAsio flammeusWinter visitorRare34–43 cmRegularly Oct–Jul · 0.01% in Oct
Williamson's SapsuckerSphyrapicus thyroideusSummer visitorRare21–25 cmRecorded all year · 0.01% in Oct
California GnatcatcherPolioptila californicaResidentRare10–11 cmRecorded all year · 0.01% in Oct
Greylag GooseAnser anserResidentRare75–90 cmRecorded all year · 0.01% in Oct
Indian PeafowlPavo cristatusResidentRare86–230 cmRecorded all year · 0.00% in Oct
Great ShearwaterArdenna gravisPassage migrantRare43–51 cmRegularly Jun–Nov · 0.00% in Oct
ChukarAlectoris chukarResidentRare32–38 cmRecorded all year · 0.00% in Oct
Arizona WoodpeckerPicoides arizonaeResidentRare19–21 cmRecorded all year · 0.00% in Oct
Grey PartridgePerdix perdixResidentRare28–32 cmRecorded all year · 0.00% in Oct
Red-cockaded WoodpeckerLeuconotopicus borealisResidentRare20–23 cmRecorded all year · 0.00% in Oct
Sharp-tailed SandpiperCalidris acuminataPassage migrantRare17–22 cmRegularly Aug–Dec · 0.00% in Oct
Gull-billed TernGelochelidon niloticaSummer visitorRare33–42 cmRecorded all year · 0.00% in Oct
Black-backed WoodpeckerPicoides arcticusResidentRare21–24 cmRecorded all year · 0.00% in Oct
Fulvous Whistling-DuckDendrocygna bicolorResidentRare45–53 cmRecorded all year · 0.00% in Oct
Long-tailed JaegerStercorarius longicaudusSummer visitorRare48–58 cmRegularly May–Oct · 0.00% in Oct
California CondorGymnogyps californianusResidentRare109–140 cmRecorded all year · 0.00% in Oct
Rose-ringed ParakeetPsittacula krameriResidentRare38–42 cmRecorded all year · 0.00% in Oct
Glaucous GullLarus hyperboreusResidentRare62–68 cmRecorded all year · 0.00% in Oct
Eurasian SkylarkAlauda arvensisWinter visitorRare16–18 cmRecorded all year · 0.00% in Oct
Mourning WarblerGeothlypis philadelphiaSummer visitorRare10–15 cmRegularly May–Oct · 0.00% in Oct
Chestnut MuniaLonchura atricapillaResidentRare10–11 cmRecorded all year · 0.00% in Oct
Black-billed CuckooCoccyzus erythropthalmusSummer visitorRare28–32 cmRegularly Apr–Oct · 0.00% in Oct
King EiderSomateria spectabilisResidentRare46–64 cmRegularly May–Mar · 0.00% in Oct
Swan GooseAnser cygnoidesWinter visitorRare81–94 cmRecorded all year · 0.00% in Oct
American Three-toed WoodpeckerPicoides dorsalisSummer visitorRare21–24 cmRecorded all year · 0.00% in Oct
Bar-tailed GodwitLimosa lapponicaSummer visitorRare37–41 cmRegularly May–Jan · 0.00% in Oct
Leach's Storm-petrelHydrobates leucorhousSummer visitorRare18–21 cmRegularly Apr–Oct · 0.00% in Oct
Yellow-bellied FlycatcherEmpidonax flaviventrisSummer visitorRare13–15 cmRegularly May–Oct · 0.00% in Oct
Bohemian WaxwingBombycilla garrulusWinter visitorRare19–23 cmRegularly Oct–Jul · 0.00% in Oct
Buff-breasted SandpiperCalidris subruficollisPassage migrantRare18–20 cmRegularly Apr–Oct · 0.00% in Oct
Manx ShearwaterPuffinus puffinusSummer visitorRare30–38 cmRegularly Feb–Dec · 0.00% in Oct
RuffCalidris pugnaxSummer visitorRare20–32 cmRecorded all year · 0.00% in Oct
Mandarin DuckAix galericulataWinter visitorRare41–49 cmRecorded all year · 0.00% in Oct
Little GullHydrocoloeus minutusResidentRare25–30 cmRecorded all year · 0.00% in Oct
BramblingFringilla montifringillaWinter visitorRare14–16 cmRegularly Sep–Jun · 0.00% in Oct
BudgerigarMelopsittacus undulatusSummer visitorRare18–20 cmRecorded all year · 0.00% in Oct
Pink-footed GooseAnser brachyrhynchusWinter visitorRare60–75 cmRegularly Oct–Mar · 0.00% in Oct
WheatearOenanthe oenantheSummer visitorRare15–16 cmRegularly May–Oct · 0.00% in Oct
European GoldfinchCarduelis carduelisResidentRare12–13 cmRecorded all year · 0.00% in Oct
Atlantic PuffinFratercula arcticaSummer visitorRare28–34 cmRegularly May–Mar · 0.00% in Oct
Pied WagtailMotacilla albaResidentRare17–19 cmRecorded all year · 0.00% in Oct
Black SwanCygnus atratusResidentRare110–142 cmRecorded all year · 0.00% in Oct
Black-headed GullChroicocephalus ridibundusWinter visitorRare38–44 cmRecorded all year · 0.00% in Oct
Vega GullLarus vegaeSummer visitorRare55–67 cmRegularly May–Dec · 0.00% in Oct
Rock PtarmiganLagopus mutaSummer visitorRare34–36 cmRegularly May–Oct · 0.00% in Oct
Tufted DuckAythya fuligulaWinter visitorRare40–47 cmRegularly Oct–Jun · 0.00% in Oct
GarganeySpatula querquedulaWinter visitorRare37–41 cmRegularly Sep–Jun · 0.00% in Oct
Whiskered Screech-owlMegascops trichopsisSummer visitorRare18–23 cmRecorded all year · 0.00% in Oct
Whooper SwanCygnus cygnusWinter visitorRare140–165 cmRegularly Aug–Jun · 0.00% in Oct
Barnacle GooseBranta leucopsisWinter visitorRare58–70 cmRegularly Oct–Mar · 0.00% in Oct
Data: EOD – eBird Observation Dataset (Cornell Lab of Ornithology), accessed via GBIF.org, CC BY 4.0. Records from 2019–2024, aggregated and filtered by Birdfact. How these lists are made