Birds to See in Connecticut in September
143 bird species on our list for Connecticut are recorded regularly in September
Of these, the most often recorded are Blue Jay, Gray Catbird, Northern Cardinal, Mourning Dove and Downy Woodpecker. New this month: Yellow-rumped Warbler, Ruby-crowned Kinglet, Palm Warbler and White-crowned Sparrow and 15 more.
On the move in September
GBIF · SepArriving
At their peak
From Connecticut’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 143 birds in September
143 birds
Blue JayCyanocitta cristataResidentCommon25–30 cmRecorded all year · 4.02% in Sep
Gray CatbirdDumetella carolinensisSummer visitorCommon20–24 cmRegularly Apr–Jan · 3.20% in Sep
Northern CardinalCardinalis cardinalisResidentCommon21–23 cmRecorded all year · 2.54% in Sep
Mourning DoveZenaida macrouraResidentCommon23–34 cmRecorded all year · 2.54% in Sep
Downy WoodpeckerDryobates pubescensResidentCommon14–18 cmRecorded all year · 2.41% in Sep
Tufted TitmouseBaeolophus bicolorResidentCommon14–17 cmRecorded all year · 2.34% in Sep
Red-bellied WoodpeckerMelanerpes carolinusResidentCommon23–26 cmRecorded all year · 2.29% in Sep
White-breasted NuthatchSitta carolinensisResidentCommon13–14 cmRecorded all year · 2.29% in Sep
American CrowCorvus brachyrhynchosResidentCommon41–53 cmRecorded all year · 2.17% in Sep
Song SparrowMelospiza melodiaResidentCommon12–17 cmRecorded all year · 2.03% in Sep
Northern FlickerColaptes auratusResidentCommon28–31 cmRecorded all year · 1.84% in Sep
American RobinTurdus migratoriusResidentCommon20–28 cmRecorded all year · 1.75% in Sep
Common YellowthroatGeothlypis trichasSummer visitorCommon11–13 cmRegularly May–Oct · 1.51% in Sep
OspreyPandion haliaetusSummer visitorCommon54–58 cmRegularly Mar–Oct · 1.47% in Sep
Great Blue HeronArdea herodiasResidentCommon91–137 cmRecorded all year · 1.42% in Sep
House FinchHaemorhous mexicanusResidentCommon13–15 cmRecorded all year · 1.40% in Sep
American Herring GullLarus smithsonianusResidentCommon53–65 cmRecorded all year · 1.40% in Sep
Common StarlingSturnus vulgarisResidentCommon21–23 cmRecorded all year · 1.37% in Sep
Canada GooseBranta canadensisResidentCommon76–110 cmRecorded all year · 1.33% in Sep
House SparrowPasser domesticusResidentCommon14–17 cmRecorded all year · 1.31% in Sep
Ruby-throated HummingbirdArchilochus colubrisSummer visitorCommon7–9 cmRegularly May–Sep · 1.31% in Sep
Great White EgretArdea albaSummer visitorCommon80–104 cmRegularly Mar–Nov · 1.30% in Sep
American RedstartSetophaga ruticillaSummer visitorCommon11–14 cmRegularly May–Oct · 1.18% in Sep
MallardAnas platyrhynchosResidentCommon50–65 cmRecorded all year · 1.14% in Sep
Ring-billed GullLarus delawarensisWinter visitorCommon43–54 cmRecorded all year · 1.02% in Sep
Hairy WoodpeckerLeuconotopicus villosusResidentCommon18–26 cmRecorded all year · 0.93% in Sep
Turkey VultureCathartes auraResidentCommon62–81 cmRecorded all year · 0.93% in Sep
Cedar WaxwingBombycilla cedrorumSummer visitorCommon15–18 cmRecorded all year · 0.86% in Sep
Northern MockingbirdMimus polyglottosResidentCommon21–26 cmRecorded all year · 0.85% in Sep
Red-tailed HawkButeo jamaicensisResidentCommon45–65 cmRecorded all year · 0.82% in Sep
Chipping SparrowSpizella passerinaSummer visitorCommon12–15 cmRegularly Apr–Nov · 0.73% in Sep
Common GrackleQuiscalus quisculaSummer visitorCommon28–34 cmRecorded all year · 0.70% in Sep
Eastern BluebirdSialia sialisResidentCommon16–21 cmRecorded all year · 0.69% in Sep
Rock DoveColumba liviaResidentCommon29–37 cmRecorded all year · 0.63% in Sep
Wood DuckAix sponsaSummer visitorCommon47–54 cmRecorded all year · 0.61% in Sep
Palm WarblerSetophaga palmarumPassage migrantCommon12–14 cmRegularly Apr–Nov · 0.60% in Sep
Common RavenCorvus coraxResidentCommon54–67 cmRecorded all year · 0.58% in Sep
Great Black-backed GullLarus marinusResidentCommon64–79 cmRecorded all year · 0.57% in Sep
Yellow-rumped WarblerSetophaga coronataWinter visitorCommon12–15 cmRegularly Sep–May · 0.52% in Sep
Greater YellowlegsTringa melanoleucaSummer visitorCommon29–40 cmRegularly Mar–Jan · 0.51% in Sep
Pileated WoodpeckerDryocopus pileatusResidentCommon40–49 cmRecorded all year · 0.48% in Sep
Bald EagleHaliaeetus leucocephalusWinter visitorCommon70–102 cmRecorded all year · 0.48% in Sep
Semipalmated SandpiperCalidris pusillaSummer visitorCommon15–18 cmRegularly May–Oct · 0.47% in Sep
Semipalmated PloverCharadrius semipalmatusSummer visitorCommon17–19 cmRegularly May–Oct · 0.44% in Sep
Magnolia WarblerSetophaga magnoliaSummer visitorUncommon11–13 cmRegularly May–Oct · 0.43% in Sep
Mute SwanCygnus olorResidentCommon140–160 cmRecorded all year · 0.42% in Sep
Black-throated Green WarblerSetophaga virensSummer visitorUncommon11–12 cmRegularly Apr–Oct · 0.41% in Sep
Red-winged BlackbirdAgelaius phoeniceusSummer visitorCommon17–23 cmRecorded all year · 0.39% in Sep
Fish CrowCorvus ossifragusResidentCommon36–41 cmRecorded all year · 0.38% in Sep
Northern Yellow WarblerSetophaga aestivaSummer visitorCommon12–13 cmRegularly Apr–Sep · 0.37% in Sep
Least SandpiperCalidris minutillaPassage migrantCommon13–15 cmRegularly May–Oct · 0.37% in Sep
Rose-breasted GrosbeakPheucticus ludovicianusSummer visitorCommon18–22 cmRegularly Apr–Sep · 0.37% in Sep
Scarlet TanagerPiranga olivaceaSummer visitorCommon16–19 cmRegularly May–Oct · 0.36% in Sep
Sharp-shinned HawkAccipiter striatusWinter visitorUncommon24–34 cmRegularly Aug–May · 0.36% in Sep
American Black DuckAnas rubripesWinter visitorCommon54–59 cmRecorded all year · 0.35% in Sep
Barn SwallowHirundo rusticaSummer visitorCommon17–19 cmRegularly Apr–Sep · 0.34% in Sep
Swamp SparrowMelospiza georgianaSummer visitorCommon12–15 cmRecorded all year · 0.32% in Sep
MerlinFalco columbariusWinter visitorUncommon24–33 cmRegularly Aug–Apr · 0.31% in Sep
Ruby-crowned KingletCorthylio calendulaPassage migrantCommon9–11 cmRegularly Sep–May · 0.27% in Sep
Grey PloverPluvialis squatarolaSummer visitorUncommon27–30 cmRegularly Apr–Feb · 0.27% in Sep
Broad-winged HawkButeo platypterusSummer visitorUncommon34–44 cmRegularly Apr–Oct · 0.26% in Sep
Swainson's ThrushCatharus ustulatusPassage migrantUncommon16–20 cmRegularly May–Oct · 0.24% in Sep
Peregrine FalconFalco peregrinusResidentUncommon34–58 cmRecorded all year · 0.23% in Sep
Lesser YellowlegsTringa flavipesPassage migrantUncommon23–27 cmRegularly Mar–Oct · 0.21% in Sep
Yellow-bellied SapsuckerSphyrapicus variusResidentCommon19–22 cmRecorded all year · 0.21% in Sep
Barred OwlStrix variaResidentUncommon43–50 cmRecorded all year · 0.21% in Sep
BobolinkDolichonyx oryzivorusSummer visitorUncommon16–20 cmRegularly May–Oct · 0.20% in Sep
Lincoln's SparrowMelospiza lincolniiPassage migrantUncommon13–15 cmRegularly May–Nov · 0.20% in Sep
Blackpoll WarblerSetophaga striataPassage migrantUncommon13–15 cmRegularly May–Oct · 0.20% in Sep
SanderlingCalidris albaResidentUncommon18–20 cmRecorded all year · 0.20% in Sep
Chestnut-sided WarblerSetophaga pensylvanicaSummer visitorUncommon10–14 cmRegularly May–Sep · 0.19% in Sep
VeeryCatharus fuscescensSummer visitorCommon16–19 cmRegularly May–Sep · 0.19% in Sep
Marsh WrenCistothorus palustrisSummer visitorUncommon10–14 cmRegularly Apr–Feb · 0.19% in Sep
Blue-headed VireoVireo solitariusSummer visitorUncommon12–15 cmRegularly Apr–Nov · 0.19% in Sep
Wild TurkeyMeleagris gallopavoResidentUncommon100–125 cmRecorded all year · 0.18% in Sep
Black-throated Blue WarblerSetophaga caerulescensSummer visitorUncommon11–13 cmRegularly Apr–Oct · 0.16% in Sep
Black-crowned Night-heronNycticorax nycticoraxSummer visitorUncommon58–65 cmRecorded all year · 0.16% in Sep
Baltimore OrioleIcterus galbulaSummer visitorCommon17–19 cmRegularly May–Sep · 0.15% in Sep
Cape May WarblerSetophaga tigrinaPassage migrantUncommon12–14 cmRegularly May–Jan · 0.14% in Sep
Great Crested FlycatcherMyiarchus crinitusSummer visitorCommon17–22 cmRegularly May–Sep · 0.14% in Sep
Tennessee WarblerLeiothlypis peregrinaPassage migrantUncommon10–13 cmRegularly May–Jan · 0.13% in Sep
Eurasian TealAnas creccaWinter visitorUncommon34–38 cmRegularly Aug–Apr · 0.13% in Sep
Nashville WarblerLeiothlypis ruficapillaPassage migrantUncommon11–13 cmRegularly Apr–Jan · 0.13% in Sep
Solitary SandpiperTringa solitariaPassage migrantUncommon19–23 cmRegularly Apr–Oct · 0.12% in Sep
Least FlycatcherEmpidonax minimusSummer visitorUncommon12–14 cmRegularly May–Sep · 0.12% in Sep
Common TernSterna hirundoSummer visitorCommon31–35 cmRegularly May–Sep · 0.12% in Sep
OvenbirdSeiurus aurocapillaSummer visitorCommon12–15 cmRegularly Apr–Sep · 0.11% in Sep
Pectoral SandpiperCalidris melanotosPassage migrantUncommon19–23 cmRegularly Mar–Nov · 0.11% in Sep
Ruddy TurnstoneArenaria interpresSummer visitorUncommon21–24 cmRecorded all year · 0.10% in Sep
American Golden-PloverPluvialis dominicaPassage migrantUncommon24–28 cmRegularly Aug–Oct · 0.09% in Sep
Short-billed DowitcherLimnodromus griseusSummer visitorUncommon23–32 cmRegularly May–Oct · 0.09% in Sep
Great Horned OwlBubo virginianusWinter visitorUncommon46–63 cmRecorded all year · 0.09% in Sep
Common LoonGavia immerWinter visitorCommon66–91 cmRecorded all year · 0.08% in Sep
Philadelphia VireoVireo philadelphicusPassage migrantUncommon11–13 cmRegularly Aug–Oct · 0.08% in Sep
Pied-billed GrebePodilymbus podicepsWinter visitorUncommon31–38 cmRegularly Aug–Apr · 0.08% in Sep
Northern WaterthrushParkesia noveboracensisSummer visitorUncommon12–15 cmRegularly Apr–Sep · 0.08% in Sep
DickcisselSpiza americanaPassage migrantUncommon14–16 cmRegularly Aug–Jan · 0.07% in Sep
Bay-breasted WarblerSetophaga castaneaPassage migrantUncommon14–14 cmRegularly May–Oct · 0.06% in Sep
Common MerganserMergus merganserWinter visitorCommon58–68 cmRecorded all year · 0.06% in Sep
Forster's TernSterna forsteriPassage migrantUncommon33–36 cmRegularly Jul–Nov · 0.06% in Sep
WilletTringa semipalmataSummer visitorUncommon33–41 cmRegularly Apr–Sep · 0.05% in Sep
WhimbrelNumenius phaeopusSummer visitorRare40–46 cmRegularly May–Oct · 0.05% in Sep
Brent GooseBranta berniclaWinter visitorCommon55–66 cmRecorded all year · 0.05% in Sep
Hermit ThrushCatharus guttatusResidentUncommon14–18 cmRecorded all year · 0.04% in Sep
EiderSomateria mollissimaWinter visitorUncommon50–71 cmRegularly Jun–Apr · 0.04% in Sep
White-rumped SandpiperCalidris fuscicollisSummer visitorUncommon15–18 cmRegularly May–Nov · 0.04% in Sep
DunlinCalidris alpinaWinter visitorUncommon16–22 cmRegularly Sep–Jun · 0.04% in Sep
Eastern Screech-owlMegascops asioResidentRare16–25 cmRecorded all year · 0.03% in Sep
Western SandpiperCalidris mauriPassage migrantRare14–17 cmRegularly Jul–Sep · 0.03% in Sep
Willow FlycatcherEmpidonax trailliiSummer visitorCommon13–17 cmRegularly May–Sep · 0.03% in Sep
Yellow-bellied FlycatcherEmpidonax flaviventrisPassage migrantRare13–15 cmRegularly May–Oct · 0.03% in Sep
Gray-cheeked ThrushCatharus minimusPassage migrantRare16–17 cmRegularly May–Oct · 0.03% in Sep
Red KnotCalidris canutusSummer visitorRare23–26 cmRegularly May–Oct · 0.03% in Sep
White-crowned SparrowZonotrichia leucophrysWinter visitorUncommon15–16 cmRegularly Sep–May · 0.03% in Sep
Stilt SandpiperCalidris himantopusPassage migrantUncommon18–23 cmRegularly Jul–Oct · 0.03% in Sep
Sand MartinRiparia ripariaSummer visitorUncommon12–14 cmRegularly Apr–Sep · 0.03% in Sep
Buff-breasted SandpiperCalidris subruficollisPassage migrantUncommon18–20 cmRegularly Aug–Sep · 0.03% in Sep
Piping PloverCharadrius melodusSummer visitorUncommon17–18 cmRegularly Mar–Sep · 0.03% in Sep
Lesser Black-backed GullLarus fuscusWinter visitorUncommon52–64 cmRegularly Sep–Apr · 0.02% in Sep
Virginia RailRallus limicolaSummer visitorUncommon20–27 cmRecorded all year · 0.02% in Sep
Baird's SandpiperCalidris bairdiiPassage migrantUncommon14–17 cmRegularly Aug–Sep · 0.02% in Sep
Marbled GodwitLimosa fedoaPassage migrantRare40–50 cmRegularly Aug–Sep · 0.02% in Sep
Monk ParakeetMyiopsitta monachusResidentUncommon29–31 cmRecorded all year · 0.02% in Sep
Bonaparte's GullChroicocephalus philadelphiaWinter visitorUncommon28–38 cmRecorded all year · 0.02% in Sep
Red-headed WoodpeckerMelanerpes erythrocephalusWinter visitorRare19–23 cmRegularly Sep–May · 0.02% in Sep
Glossy IbisPlegadis falcinellusSummer visitorUncommon48–66 cmRegularly Mar–Sep · 0.02% in Sep
American BitternBotaurus lentiginosusWinter visitorUncommon58–85 cmRecorded all year · 0.02% in Sep
Great CormorantPhalacrocorax carboWinter visitorUncommon80–100 cmRegularly Sep–Mar · 0.01% in Sep
Black-billed CuckooCoccyzus erythropthalmusSummer visitorUncommon28–32 cmRegularly May–Sep · 0.01% in Sep
Clay-colored SparrowSpizella pallidaPassage migrantUncommon13–15 cmRegularly Jun–Dec · 0.01% in Sep
Mourning WarblerGeothlypis philadelphiaPassage migrantRare10–15 cmRegularly May–Oct · 0.01% in Sep
Northern PintailAnas acutaWinter visitorUncommon59–76 cmRegularly Sep–Apr · 0.01% in Sep
Northern ShovelerSpatula clypeataWinter visitorUncommon44–51 cmRegularly Sep–Apr · 0.01% in Sep
Lark SparrowChondestes grammacusResidentRare15–17 cmRegularly Sep–Nov · 0.01% in Sep
Sandhill CraneAntigone canadensisSummer visitorRare80–122 cmRegularly Mar–Dec · 0.01% in Sep
Hudsonian GodwitLimosa haemasticaPassage migrantRare36–42 cmRegularly Aug–Nov · 0.01% in Sep
Lapland LongspurCalcarius lapponicusWinter visitorUncommon15–16 cmRegularly Sep–Apr · 0.01% in Sep
Alder FlycatcherEmpidonax alnorumSummer visitorUncommon13–17 cmRegularly May–Sep · 0.00% in Sep
Black TernChlidonias nigerSummer visitorRare22–26 cmRegularly May–Sep · 0.00% in Sep
Long-billed DowitcherLimnodromus scolopaceusPassage migrantRare27–30 cmRegularly Aug–Nov · 0.00% in Sep
Ruffed GrouseBonasa umbellusSummer visitorRare41–50 cmRegularly Mar–Sep · 0.00% in Sep
Upland SandpiperBartramia longicaudaPassage migrantRare28–32 cmRegularly Apr–Sep · 0.00% in Sep
Muscovy DuckCairina moschataResidentRare66–84 cmRegularly Mar–Dec · 0.00% in Sep
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