Birds to See in Offaly in September
24 bird species on our list for Offaly are recorded regularly in September
Of these, the most often recorded are Buzzard, Common Raven, Mallard, Mute Swan and Northern Lapwing. New this month: Greylag Goose, Linnet, Moorhen and Curlew.
On the move in September
GBIF · SepArriving
At their peak
From Offaly’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 24 birds in September
24 birds
BuzzardButeo buteoResidentCommon51–57 cmRecorded all year · 3.50% in Sep
Common RavenCorvus coraxWinter visitorCommon54–67 cmRecorded all year · 3.50% in Sep
MallardAnas platyrhynchosResidentCommon50–65 cmRecorded all year · 3.50% in Sep
Mute SwanCygnus olorResidentCommon140–160 cmRecorded all year · 3.50% in Sep
Northern LapwingVanellus vanellusResidentCommon28–31 cmRecorded all year · 3.50% in Sep
Barn SwallowHirundo rusticaSummer visitorCommon17–19 cmRegularly Apr–Sep · 3.00% in Sep
Grey HeronArdea cinereaResidentCommon90–98 cmRecorded all year · 3.00% in Sep
JackdawColoeus monedulaResidentCommon34–39 cmRecorded all year · 3.00% in Sep
RookCorvus frugilegusResidentCommon45–47 cmRecorded all year · 3.00% in Sep
WoodpigeonColumba palumbusResidentCommon40–42 cmRecorded all year · 3.00% in Sep
BlackbirdTurdus merulaResidentCommon24–25 cmRecorded all year · 2.50% in Sep
Blue TitCyanistes caeruleusResidentCommon11–12 cmRecorded all year · 2.50% in Sep
ChaffinchFringilla coelebsResidentCommon14–16 cmRecorded all year · 2.50% in Sep
Eurasian WrenTroglodytes troglodytesResidentCommon9–10 cmRecorded all year · 2.50% in Sep
European RobinErithacus rubeculaResidentCommon13–14 cmRecorded all year · 2.50% in Sep
Greylag GooseAnser anserResidentCommon75–90 cmRegularly May–Mar · 2.50% in Sep
KestrelFalco tinnunculusSummer visitorCommon32–39 cmRegularly Mar–Jan · 2.50% in Sep
Common PheasantPhasianus colchicusResidentCommon50–90 cmRecorded all year · 2.00% in Sep
LinnetLinaria cannabinaResidentCommon13–14 cmRegularly Sep–Jul · 2.00% in Sep
Little GrebeTachybaptus ruficollisResidentCommon23–29 cmRegularly Dec–Sep · 2.00% in Sep
CurlewNumenius arquataWinter visitorCommon50–60 cmRegularly Jun–Mar · 1.50% in Sep
European GoldfinchCarduelis carduelisResidentCommon12–13 cmRecorded all year · 1.50% in Sep
House MartinDelichon urbicumSummer visitorCommon13–15 cmRegularly Apr–Sep · 1.50% in Sep
MoorhenGallinula chloropusResidentCommon30–38 cmRegularly Sep–Jul · 1.50% in Sep
Smallest to largest
Length, cm- Eurasian Wren 9–10 cm
- Blue Tit 11–12 cm
- European Goldfinch 12–13 cm
- European Robin 13–14 cm
- Linnet 13–14 cm
- House Martin 13–15 cm
- Chaffinch 14–16 cm
- Barn Swallow 17–19 cm
- Blackbird 24–25 cm
- Little Grebe 23–29 cm
- Northern Lapwing 28–31 cm
- Moorhen 30–38 cm
- Kestrel 32–39 cm
- Jackdaw 34–39 cm
- Woodpigeon 40–42 cm
- Rook 45–47 cm
- Buzzard 51–57 cm
- Curlew 50–60 cm
- Mallard 50–65 cm
- Common Raven 54–67 cm
- Common Pheasant 50–90 cm
- Greylag Goose 75–90 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