Birds to See in Guam in October
13 bird species on our list for Guam are recorded regularly in October
Of these, the most often recorded are Eurasian Tree Sparrow, Pacific Golden-Plover, Whimbrel, Ruddy Turnstone and Grey Plover. New this month: Wood Sandpiper and Sharp-tailed Sandpiper.
On the move in October
GBIF · OctArriving
At their peak
From Guam’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 13 birds in October
13 birds
Eurasian Tree SparrowPasser montanusResidentCommon13–14 cmRecorded all year · 10.37% in Oct
Pacific Golden-PloverPluvialis fulvaWinter visitorCommon23–26 cmRegularly Aug–Apr · 6.92% in Oct
WhimbrelNumenius phaeopusResidentCommon40–46 cmRecorded all year · 4.03% in Oct
Ruddy TurnstoneArenaria interpresResidentCommon21–24 cmRecorded all year · 3.07% in Oct
Grey PloverPluvialis squatarolaWinter visitorCommon27–30 cmRegularly Sep–May · 2.69% in Oct
MoorhenGallinula chloropusResidentCommon30–38 cmRecorded all year · 2.69% in Oct
Rock DoveColumba liviaResidentCommon31–34 cmRecorded all year · 2.21% in Oct
Little EgretEgretta garzettaWinter visitorCommon55–65 cmRegularly Sep–Apr · 1.92% in Oct
Red JunglefowlGallus gallusSummer visitorCommon42–75 cmRegularly Mar–Jan · 1.63% in Oct
Common SandpiperActitis hypoleucosPassage migrantCommon18–20 cmRegularly Aug–Apr · 1.54% in Oct
Common TernSterna hirundoPassage migrantCommon31–35 cmRegularly Sep–Jan · 1.34% in Oct
Sharp-tailed SandpiperCalidris acuminataPassage migrantCommon17–22 cmRegularly Oct–Nov · 0.58% in Oct
Wood SandpiperTringa glareolaWinter visitorCommon19–21 cmRegularly Oct–Apr · 0.58% in Oct
Smallest to largest
Length, cm- Eurasian Tree Sparrow 13–14 cm
- Common Sandpiper 18–20 cm
- Sharp-tailed Sandpiper 17–22 cm
- Wood Sandpiper 19–21 cm
- Ruddy Turnstone 21–24 cm
- Pacific Golden-Plover 23–26 cm
- Grey Plover 27–30 cm
- Rock Dove 31–34 cm
- Common Tern 31–35 cm
- Moorhen 30–38 cm
- Whimbrel 40–46 cm
- Red Junglefowl 42–75 cm
- Little Egret 55–65 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