Avibase - Bird Checklists of the World
Isla San Jerónimo
This checklist includes all bird species found in Isla San Jerónimo , 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 2025. 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 Birds Canada, which is a co-partner of Birdlife International.
© Denis Lepage 2026
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Country or region: Isla San Jerónimo [map]
Number of globally threatened species: 7
Number of introduced species: 2
Date last reviewed: 2024-12-24
Last modified: 2025-10-12
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| Brant | Branta bernicla | |
| Surf Scoter | Melanitta perspicillata | |
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| Eurasian Collared-Dove | Streptopelia decaocto | Introduced species |
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| Lesser Nighthawk | Chordeiles acutipennis | |
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| Anna's Hummingbird | Calypte anna | |
| Costa's Hummingbird | Calypte costae | |
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| American Oystercatcher | Haematopus palliatus | |
| Black Oystercatcher | Haematopus bachmani | |
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| Black-bellied Plover | Pluvialis squatarola | Vulnerable |
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| Hudsonian Whimbrel | Numenius hudsonicus | |
| Long-billed Curlew | Numenius americanus | |
| Short-billed Dowitcher | Limnodromus griseus | Vulnerable |
| Red Phalarope | Phalaropus fulicarius | |
| Red-necked Phalarope | Phalaropus lobatus | |
| Spotted Sandpiper | Actitis macularius | |
| Wandering Tattler | Tringa incana | Rare/Accidental |
| Willet | Tringa semipalmata | |
| Ruddy Turnstone | Arenaria interpres | Near-threatened |
| Black Turnstone | Arenaria melanocephala | |
| Surfbird | Calidris virgata | |
| Least Sandpiper | Calidris minutilla | Near-threatened |
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| Parasitic Jaeger | Stercorarius parasiticus | |
| Pomarine Jaeger | Stercorarius pomarinus | |
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| Cassin's Auklet | Ptychoramphus aleuticus | Near-threatened |
| Scripps's Murrelet | Synthliboramphus scrippsi | Vulnerable |
| Guadalupe Murrelet | Synthliboramphus hypoleucus | Endemic (country/region) Endangered |
| Craveri's Murrelet | Synthliboramphus craveri | Endemic (country/region) Vulnerable |
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| Black-legged Kittiwake | Rissa tridactyla | Rare/Accidental Vulnerable |
| Sabine's Gull | Xema sabini | |
| Bonaparte's Gull | Chroicocephalus philadelphia | |
| Heermann's Gull | Larus heermanni | Near-threatened |
| Western Gull | Larus occidentalis | |
| American Herring Gull | Larus smithsonianus | |
| California Gull | Larus californicus | |
| Glaucous-winged Gull | Larus glaucescens | |
| Black Skimmer | Rynchops niger | |
| Caspian Tern | Hydroprogne caspia | |
| Common Tern | Sterna hirundo | |
| Elegant Tern | Thalasseus elegans | Near-threatened |
| Royal Tern | Thalasseus maximus | |
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| Eared Grebe | Podiceps nigricollis | |
| Western Grebe | Aechmophorus occidentalis | |
| Clark's Grebe | Aechmophorus clarkii | |
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| Red-throated Loon | Gavia stellata | |
| Pacific Loon | Gavia pacifica | |
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| Black-footed Albatross | Phoebastria nigripes | Near-threatened |
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| Black Storm-Petrel | Hydrobates melania | |
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| Northern Fulmar | Fulmarus glacialis | |
| Pink-footed Shearwater | Ardenna creatopus | Vulnerable |
| Sooty Shearwater | Ardenna grisea | Near-threatened |
| Black-vented Shearwater | Puffinus opisthomelas | Endemic (country/region) Near-threatened |
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| Magnificent Frigatebird | Fregata magnificens | |
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| Cocos Booby | Sula brewsteri | |
| Nazca Booby | Sula granti | Rare/Accidental |
| Blue-footed Booby | Sula nebouxii | |
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| Brandt's Cormorant | Urile penicillatus | |
| Pelagic Cormorant | Urile pelagicus | |
| Double-crested Cormorant | Nannopterum auritum | |
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| Snowy Egret | Egretta thula | |
| Great Egret | Ardea alba | |
| Great Blue Heron | Ardea herodias | |
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| Brown Pelican | Pelecanus occidentalis | |
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| Osprey | Pandion haliaetus | |
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| Belted Kingfisher | Megaceryle alcyon | |
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| Peregrine Falcon | Falco peregrinus | |
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| Western Wood-Pewee | Contopus sordidulus | |
| Western Flycatcher | Empidonax difficilis | |
| Black Phoebe | Sayornis nigricans | |
| Scissor-tailed Flycatcher | Tyrannus forficatus | Rare/Accidental |
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| Common Raven | Corvus corax | |
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| Violet-green Swallow | Tachycineta thalassina | |
| Cliff Swallow | Petrochelidon pyrrhonota | |
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| Rock Wren | Salpinctes obsoletus | |
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| Northern Mockingbird | Mimus polyglottos | |
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| Hermit Thrush | Catharus guttatus | |
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| House Sparrow | Passer domesticus | Introduced species |
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| White-crowned Sparrow | Zonotrichia leucophrys | |
| Savannah Sparrow | Passerculus sandwichensis | |
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| Hooded Oriole | Icterus cucullatus | |
| Brown-headed Cowbird | Molothrus ater | |
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| Black-and-white Warbler | Mniotilta varia | Rare/Accidental |
| Tennessee Warbler | Leiothlypis peregrina | Rare/Accidental |
| Orange-crowned Warbler | Leiothlypis celata | |
| American Redstart | Setophaga ruticilla | Rare/Accidental |
| Northern Yellow Warbler | Setophaga aestiva | |
| Yellow-rumped Warbler | Setophaga coronata | |
| Townsend's Warbler | Setophaga townsendi | |
| Hermit Warbler | Setophaga occidentalis | |
| Wilson's Warbler | Cardellina pusilla | |
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| Lazuli Bunting | Passerina amoena | |
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