Birds to See in Guam in December
18 bird species on our list for Guam are recorded regularly in December
Of these, the most often recorded are Eurasian Tree Sparrow, Pacific Golden-Plover, Moorhen, Ruddy Turnstone and Whimbrel. New this month: Garganey and Ringed Plover.
On the move in December
GBIF · DecAt 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 18 birds in December
18 birds
Eurasian Tree SparrowPasser montanusResidentCommon13–14 cmRecorded all year · 9.51% in Dec
Pacific Golden-PloverPluvialis fulvaWinter visitorCommon23–26 cmRegularly Aug–Apr · 6.75% in Dec
MoorhenGallinula chloropusResidentCommon30–38 cmRecorded all year · 2.95% in Dec
Ruddy TurnstoneArenaria interpresResidentCommon21–24 cmRecorded all year · 2.82% in Dec
WhimbrelNumenius phaeopusResidentCommon40–46 cmRecorded all year · 2.82% in Dec
Grey PloverPluvialis squatarolaWinter visitorCommon27–30 cmRegularly Sep–May · 2.62% in Dec
Little EgretEgretta garzettaWinter visitorCommon55–65 cmRegularly Sep–Apr · 2.56% in Dec
Rock DoveColumba liviaResidentCommon31–34 cmRecorded all year · 2.49% in Dec
Common SandpiperActitis hypoleucosPassage migrantCommon18–20 cmRegularly Aug–Apr · 2.10% in Dec
Northern PintailAnas acutaWinter visitorCommon59–76 cmRegularly Nov–Mar · 1.70% in Dec
Wood SandpiperTringa glareolaWinter visitorCommon19–21 cmRegularly Oct–Apr · 1.57% in Dec
Tufted DuckAythya fuligulaWinter visitorCommon40–47 cmRegularly Nov–Feb · 1.11% in Dec
Eurasian WigeonMareca penelopeWinter visitorCommon42–51 cmRegularly Nov–Mar · 0.98% in Dec
Red JunglefowlGallus gallusSummer visitorCommon42–75 cmRegularly Mar–Jan · 0.66% in Dec
GarganeySpatula querquedulaPassage migrantCommon37–41 cmRegularly Dec · 0.59% in Dec
Northern ShovelerSpatula clypeataPassage migrantCommon44–51 cmRegularly Nov–Mar · 0.59% in Dec
Ringed PloverCharadrius hiaticulaPassage migrantUncommon17–19 cmRegularly Dec · 0.39% in Dec
GreenshankTringa nebulariaPassage migrantCommon30–35 cmRegularly Nov–Feb · 0.33% in Dec
Smallest to largest
Length, cm- Eurasian Tree Sparrow 13–14 cm
- Ringed Plover 17–19 cm
- Common Sandpiper 18–20 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
- Greenshank 30–35 cm
- Moorhen 30–38 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
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