Common Birds in Guam
Our list for Guam has 21 common birds recorded regularly there: 5 residents, 1 summer visitor, 7 winter visitors and 8 passage migrants
Most likely in October
GBIF · OctShare of all bird records in Guam in October, 2019–2024. Each month links to that month’s page.
All 21, most common first
Eurasian Tree SparrowPasser montanusResidentCommon13–14 cmRecorded all year
Pacific Golden-PloverPluvialis fulvaWinter visitorCommon23–26 cmRegularly Aug–Apr
Ruddy TurnstoneArenaria interpresResidentCommon21–24 cmRecorded all year
WhimbrelNumenius phaeopusResidentCommon40–46 cmRecorded all year
Grey PloverPluvialis squatarolaWinter visitorCommon27–30 cmRegularly Sep–May
Rock DoveColumba liviaResidentCommon29–37 cmRecorded all year
MoorhenGallinula chloropusResidentCommon30–38 cmRecorded all year
Red JunglefowlGallus gallusSummer visitorCommon42–75 cmRegularly Mar–Jan
Northern PintailAnas acutaWinter visitorCommon59–76 cmRegularly Nov–Mar
Common SandpiperActitis hypoleucosPassage migrantCommon18–20 cmRegularly Aug–Apr
Little EgretEgretta garzettaWinter visitorCommon55–65 cmRegularly Sep–Apr
Eurasian WigeonMareca penelopeWinter visitorCommon42–51 cmRegularly Nov–Mar
Tufted DuckAythya fuligulaWinter visitorCommon40–47 cmRegularly Nov–Feb
Wood SandpiperTringa glareolaWinter visitorCommon19–21 cmRegularly Oct–Apr
Common TernSterna hirundoPassage migrantCommon31–35 cmRegularly Sep–Jan
CootFulica atraPassage migrantCommon36–42 cmRegularly Mar
Great White EgretArdea albaPassage migrantCommon80–104 cmRegularly Nov–Mar
Northern ShovelerSpatula clypeataPassage migrantCommon44–51 cmRegularly Nov–Mar
GreenshankTringa nebulariaPassage migrantCommon30–35 cmRegularly Nov–Feb
Sharp-tailed SandpiperCalidris acuminataPassage migrantCommon17–22 cmRegularly Oct–Nov
GarganeySpatula querquedulaPassage migrantCommon37–41 cmRegularly Dec
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
- Greenshank 30–35 cm
- Rock Dove 29–37 cm
- Common Tern 31–35 cm
- Moorhen 30–38 cm
- Coot 36–42 cm
- Garganey 37–41 cm
- Whimbrel 40–46 cm
- Tufted Duck 40–47 cm
- Eurasian Wigeon 42–51 cm
- Northern Shoveler 44–51 cm
- Red Junglefowl 42–75 cm
- Little Egret 55–65 cm
- Northern Pintail 59–76 cm
- Great White Egret 80–104 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