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Avibase - Bird Checklists of the World
Guam
This checklist includes all bird species found in Guam , based on the best information available at this time. It is based on a wide variety of sources that I collated over many years. I am pleased to offer these checklists as a service to birdwatchers. If you find any error, please do not hesitate to .
The taxonomic order and nomenclature follows Clements, version 2019. If you prefer to view the list based on a different authority, click on one of the list available below. Globally threatened species (status in red) were identified by Birdlife International in Birdlife Data Zone (species).
Bird Checklists of the World is part of Avibase and Bird links to the World, which are designed and maintained by Denis Lepage, and hosted by Bird Studies Canada, which is a co-partner of Birdlife International.
© Denis Lepage 2021
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Country or region: Guam [map]
Number of endemics: 3
Number of globally threatened species: 15
Number of extinct species: 3
Number of introduced species: 8
Date last reviewed: 2013-01-13
Last modified: 2020-09-20
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| Tundra Swan | Cygnus columbianus | Rare/Accidental |
| Garganey | Spatula querquedula | Rare/Accidental |
| Northern Shoveler | Spatula clypeata | Rare/Accidental |
| Gadwall | Mareca strepera | |
| Eurasian Wigeon | Mareca penelope | |
| American Wigeon | Mareca americana | |
| Eastern Spot-billed Duck | Anas zonorhyncha | Rare/Accidental |
| Mallard | Anas platyrhynchos | |
| Northern Pintail | Anas acuta | Rare/Accidental |
| Green-winged Teal | Anas crecca | |
| Common Pochard | Aythya ferina | Rare/Accidental Vulnerable |
| Tufted Duck | Aythya fuligula | |
| Greater Scaup | Aythya marila | Rare/Accidental |
| Surf Scoter | Melanitta perspicillata | Rare/Accidental |
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| Micronesian Scrubfowl | Megapodius laperouse | Extirpated Endangered |
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| Blue-breasted Quail | Synoicus chinensis | Introduced species |
| Black Francolin | Francolinus francolinus | Introduced species |
| Red Junglefowl | Gallus gallus | Introduced species |
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| Rock Pigeon | Columba livia | Introduced species |
| Philippine Collared-Dove | Streptopelia dusumieri | Introduced species Vulnerable |
| White-throated Ground Dove | Alopecoenas xanthonurus | Near-threatened |
| Mariana Fruit-Dove | Ptilinopus roseicapilla | Endangered |
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| Chestnut-winged Cuckoo | Clamator coromandus | Rare/Accidental |
| Long-tailed Koel | Urodynamis taitensis | Rare/Accidental |
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| White-throated Needletail | Hirundapus caudacutus | Rare/Accidental |
| Uniform Swiftlet | Aerodramus vanikorensis | |
| Mariana Swiftlet | Aerodramus bartschi | Endemic (country/region) Endangered |
| Caroline Islands Swiftlet | Aerodramus inquietus | |
| Pacific Swift | Apus pacificus | |
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| Guam Rail | Gallirallus owstoni | Endemic Critically endangered |
| Eurasian Moorhen | Gallinula chloropus | |
| Eurasian Coot | Fulica atra | Rare/Accidental |
| White-browed Crake | Amaurornis cinerea | Extirpated |
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| Black-winged Stilt | Himantopus himantopus | |
| Black-necked Stilt | Himantopus mexicanus | |
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| Eurasian Oystercatcher | Haematopus ostralegus | Rare/Accidental Near-threatened |
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| Black-bellied Plover | Pluvialis squatarola | |
| Pacific Golden-Plover | Pluvialis fulva | |
| Lesser Sand-Plover | Charadrius mongolus | |
| Greater Sand-Plover | Charadrius leschenaultii | |
| Kentish Plover | Charadrius alexandrinus | |
| Common Ringed Plover | Charadrius hiaticula | |
| Little Ringed Plover | Charadrius dubius | |
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| Bristle-thighed Curlew | Numenius tahitiensis | Vulnerable |
| Whimbrel | Numenius phaeopus | |
| Little Curlew | Numenius minutus | |
| Far Eastern Curlew | Numenius madagascariensis | Endangered |
| Eurasian Curlew | Numenius arquata | Near-threatened |
| Bar-tailed Godwit | Limosa lapponica | Near-threatened |
| Black-tailed Godwit | Limosa limosa | Near-threatened |
| Ruddy Turnstone | Arenaria interpres | |
| Great Knot | Calidris tenuirostris | Endangered |
| Red Knot | Calidris canutus | Rare/Accidental Near-threatened |
| Ruff | Calidris pugnax | |
| Sharp-tailed Sandpiper | Calidris acuminata | |
| Curlew Sandpiper | Calidris ferruginea | Near-threatened |
| Temminck's Stint | Calidris temminckii | Rare/Accidental |
| Long-toed Stint | Calidris subminuta | |
| Red-necked Stint | Calidris ruficollis | Near-threatened |
| Sanderling | Calidris alba | |
| Dunlin | Calidris alpina | |
| Pectoral Sandpiper | Calidris melanotos | |
| Long-billed Dowitcher | Limnodromus scolopaceus | |
| Latham's Snipe | Gallinago hardwickii | Rare/Accidental |
| Common Snipe | Gallinago gallinago | |
| Swinhoe's Snipe | Gallinago megala | |
| Terek Sandpiper | Xenus cinereus | |
| Wilson's Phalarope | Phalaropus tricolor | Rare/Accidental |
| Common Sandpiper | Actitis hypoleucos | |
| Gray-tailed Tattler | Tringa brevipes | Near-threatened |
| Wandering Tattler | Tringa incana | |
| Common Greenshank | Tringa nebularia | |
| Marsh Sandpiper | Tringa stagnatilis | |
| Wood Sandpiper | Tringa glareola | |
| Common Redshank | Tringa totanus | |
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| Oriental Pratincole | Glareola maldivarum | |
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| Black-headed Gull | Chroicocephalus ridibundus | |
| Laughing Gull | Leucophaeus atricilla | Rare/Accidental |
| Slaty-backed Gull | Larus schistisagus | Rare/Accidental |
| Brown Noddy | Anous stolidus | |
| Black Noddy | Anous minutus | |
| White Tern | Gygis alba | |
| Sooty Tern | Onychoprion fuscatus | |
| Little Tern | Sternula albifrons | |
| Gull-billed Tern | Gelochelidon nilotica | Rare/Accidental |
| White-winged Tern | Chlidonias leucopterus | |
| Whiskered Tern | Chlidonias hybrida | |
| Black-naped Tern | Sterna sumatrana | |
| Common Tern | Sterna hirundo | |
| Great Crested Tern | Thalasseus bergii | |
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| White-tailed Tropicbird | Phaethon lepturus | |
| Red-tailed Tropicbird | Phaethon rubricauda | |
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| Laysan Albatross | Phoebastria immutabilis | Rare/Accidental Near-threatened |
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| Leach's Storm-Petrel | Oceanodroma leucorhoa | Vulnerable |
| Matsudaira's Storm-Petrel | Oceanodroma matsudairae | Vulnerable |
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| Juan Fernandez Petrel | Pterodroma externa | Vulnerable |
| Tahiti Petrel | Pseudobulweria rostrata | Near-threatened |
| Streaked Shearwater | Calonectris leucomelas | Near-threatened |
| Wedge-tailed Shearwater | Ardenna pacifica | |
| Short-tailed Shearwater | Ardenna tenuirostris | |
| Newell's Shearwater | Puffinus newelli | Rare/Accidental Critically endangered |
| Tropical Shearwater | Puffinus bailloni | |
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| Great Frigatebird | Fregata minor | |
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| Masked Booby | Sula dactylatra | |
| Brown Booby | Sula leucogaster | |
| Red-footed Booby | Sula sula | |
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| Yellow Bittern | Ixobrychus sinensis | |
| Black Bittern | Ixobrychus flavicollis | Rare/Accidental |
| Gray Heron | Ardea cinerea | |
| Great Egret | Ardea alba | |
| Intermediate Egret | Ardea intermedia | |
| Little Egret | Egretta garzetta | |
| Pacific Reef-Heron | Egretta sacra | |
| Cattle Egret | Bubulcus ibis | |
| Chinese Pond-Heron | Ardeola bacchus | Rare/Accidental |
| Striated Heron | Butorides striata | |
| Black-crowned Night-Heron | Nycticorax nycticorax | |
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| Osprey | Pandion haliaetus | |
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| Gray-faced Buzzard | Butastur indicus | Rare/Accidental |
| Chinese Sparrowhawk | Accipiter soloensis | |
| Black Kite | Milvus migrans | |
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| Short-eared Owl | Asio flammeus | |
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| Common Kingfisher | Alcedo atthis | Rare/Accidental |
| Guam Kingfisher | Todiramphus cinnamominus | Extinct in the wild |
| Mariana Kingfisher | Todiramphus albicilla | Rare/Accidental |
| Belted Kingfisher | Megaceryle alcyon | Rare/Accidental |
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| Dollarbird | Eurystomus orientalis | Rare/Accidental |
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| Eurasian Kestrel | Falco tinnunculus | |
| Peregrine Falcon | Falco peregrinus | |
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| Micronesian Myzomela | Myzomela rubratra | Extirpated |
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| Rufous Fantail | Rhipidura rufifrons | Extirpated |
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| Black Drongo | Dicrurus macrocercus | Introduced species |
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| Guam Flycatcher | Myiagra freycineti | Endemic Extinct |
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| Mariana Crow | Corvus kubaryi | Endemic (country/region) Critically endangered |
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| Nightingale Reed Warbler | Acrocephalus luscinius | Endemic (country/region) Extinct |
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| Barn Swallow | Hirundo rustica | |
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| Bridled White-eye | Zosterops conspicillatus | Extirpated |
| Rota White-eye | Zosterops rotensis | Endemic Critically endangered |
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| Micronesian Starling | Aplonis opaca | Endemic (country/region) |
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| Narcissus Flycatcher | Ficedula narcissina | Rare/Accidental |
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| Chestnut Munia | Lonchura atricapilla | Introduced species |
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| Eurasian Tree Sparrow | Passer montanus | Introduced species |
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| Gray Wagtail | Motacilla cinerea | Rare/Accidental |
| Eastern Yellow Wagtail | Motacilla tschutschensis | Rare/Accidental |
| White Wagtail | Motacilla alba | Rare/Accidental |
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