Uncommon Birds in Mayo
Our list for Mayo has 61 uncommon birds recorded regularly there: 8 residents, 7 summer visitors, 4 winter visitors, 28 passage migrants and 14 scarce visitors
Most likely in October
GBIF · Oct
Share of all bird records in Mayo in October, 2019–2024. Each month links to that month’s page.
All 61, most common first
CootFulica atraResidentUncommon36–42 cmRegularly Oct–Jun
Grey PloverPluvialis squatarolaWinter visitorUncommon27–30 cmRegularly Sep–Feb
Long-tailed DuckClangula hyemalisPassage migrantUncommon37–60 cmRegularly Jan–Feb
Curlew SandpiperCalidris ferrugineaPassage migrantUncommon18–23 cmRegularly Sep–Oct
Spotted FlycatcherMuscicapa striataPassage migrantUncommon14–16 cmRegularly Aug–Sep
Sabine's GullXema sabiniPassage migrantUncommon27–33 cmRegularly Aug–Sep
EiderSomateria mollissimaPassage migrantUncommon50–71 cmRegularly Feb–Jun
Iceland GullLarus glaucoidesPassage migrantUncommon52–60 cmRegularly Jan–Mar
Water RailRallus aquaticusResidentUncommon23–28 cmRegularly May–Dec
Leach's Storm-petrelHydrobates leucorhousPassage migrantUncommon18–21 cmRegularly Sep
Pink-footed GooseAnser brachyrhynchusPassage migrantUncommon60–75 cmRegularly Sep–Feb
Cackling GooseBranta hutchinsiiScarceUncommon53–76 cmRegularly Mar
Mediterranean GullIchthyaetus melanocephalusResidentUncommon37–40 cmRegularly Sep–Feb
Greater ScaupAythya marilaPassage migrantUncommon39–56 cmRegularly Nov
American Black DuckAnas rubripesPassage migrantUncommon54–59 cmRegularly Feb–Sep
Common MerganserMergus merganserPassage migrantUncommon58–68 cmRegularly Jan
Arctic LoonGavia arcticaPassage migrantUncommon58–77 cmRegularly Sep
Canada GooseBranta canadensisResidentUncommon76–110 cmRegularly Nov
Greater White-fronted GooseAnser albifronsPassage migrantUncommon64–81 cmRegularly Feb–Mar
TwiteLinaria flavirostrisSummer visitorUncommon13–14 cmRegularly Jan–Jul
Northern PintailAnas acutaScarceUncommon59–76 cmRegularly Apr–Aug
DipperCinclus cinclusResidentUncommon17–20 cmRegularly May–Oct
Glaucous GullLarus hyperboreusPassage migrantUncommon62–68 cmRegularly Jan
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