Birds to See in Roscommon in September
22 bird species on our list for Roscommon are recorded regularly in September
Of these, the most often recorded are Barn Swallow, Jackdaw, European Robin, Mute Swan and Rook. New this month: Buzzard, Black-headed Gull, Great Tit and Moorhen and 1 more.
On the move in September
GBIF · SepArriving
From Roscommon’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 22 birds in September
22 birds
Barn SwallowHirundo rusticaSummer visitorCommon17–19 cmRegularly Apr–Sep · 6.25% in Sep
JackdawColoeus monedulaSummer visitorCommon34–39 cmRegularly Jan–Nov · 6.25% in Sep
European RobinErithacus rubeculaResidentCommon13–14 cmRecorded all year · 5.29% in Sep
Mute SwanCygnus olorResidentCommon140–160 cmRecorded all year · 4.33% in Sep
RookCorvus frugilegusSummer visitorCommon45–47 cmRegularly Mar–Jan · 4.33% in Sep
Common StarlingSturnus vulgarisSummer visitorCommon21–23 cmRegularly Mar–Jan · 3.85% in Sep
Hooded CrowCorvus cornixSummer visitorCommon44–51 cmRegularly Feb–Dec · 3.85% in Sep
MallardAnas platyrhynchosSummer visitorCommon50–65 cmRegularly Feb–Nov · 3.85% in Sep
Pied WagtailMotacilla albaSummer visitorCommon17–18 cmRegularly Jan–Oct · 3.85% in Sep
Eurasian WrenTroglodytes troglodytesSummer visitorCommon9–10 cmRegularly Feb–Nov · 3.37% in Sep
Great TitParus majorSummer visitorCommonRegularly Jan–Oct · 2.88% in Sep
WoodpigeonColumba palumbusSummer visitorCommon40–42 cmRegularly Jan–Oct · 2.88% in Sep
BuzzardButeo buteoSummer visitorCommon51–57 cmRegularly Mar–Jan · 2.40% in Sep
Great CormorantPhalacrocorax carboSummer visitorCommon80–100 cmRegularly Apr–Oct · 2.40% in Sep
MagpiePica picaSummer visitorCommon44–46 cmRegularly Jan–Oct · 2.40% in Sep
GoldcrestRegulus regulusSummer visitorCommon9–10 cmRegularly Apr–Oct · 1.92% in Sep
Grey HeronArdea cinereaSummer visitorCommon90–98 cmRegularly Apr–Jan · 1.92% in Sep
House MartinDelichon urbicumSummer visitorCommon13–15 cmRegularly Apr–Sep · 1.92% in Sep
MoorhenGallinula chloropusSummer visitorCommon30–38 cmRegularly May–Oct · 1.92% in Sep
Rock DoveColumba liviaResidentCommon31–34 cmRegularly May–Oct · 1.92% in Sep
Black-headed GullChroicocephalus ridibundusSummer visitorCommon38–44 cmRegularly Mar–Sep · 1.44% in Sep
Great Crested GrebePodiceps cristatusSummer visitorCommon46–51 cmRegularly Feb–Oct · 1.44% in Sep
Smallest to largest
Length, cm- Goldcrest 9–10 cm
- Eurasian Wren 9–10 cm
- European Robin 13–14 cm
- House Martin 13–15 cm
- Pied Wagtail 17–18 cm
- Barn Swallow 17–19 cm
- Common Starling 21–23 cm
- Rock Dove 31–34 cm
- Moorhen 30–38 cm
- Jackdaw 34–39 cm
- Woodpigeon 40–42 cm
- Black-headed Gull 38–44 cm
- Magpie 44–46 cm
- Rook 45–47 cm
- Hooded Crow 44–51 cm
- Great Crested Grebe 46–51 cm
- Buzzard 51–57 cm
- Mallard 50–65 cm
- Great Cormorant 80–100 cm
- Grey Heron 90–98 cm
- Mute Swan 140–160 cm
Body length, bill to tail. Rare birds in grey.
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