Guadalupe Murrelet

About the Guadalupe Murrelet

Also known as: Xantus's Murrelet
The Guadalupe Murrelet is a relatively newly recognized species of auk found in the Pacific Ocean off California and Mexico. The species was split from the Xantus's Murrelet, along with the Scripp's Murrelet, in 2012.

Guadalupe Murrelets feed far out in the ocean outside of breeding season. They are often found around larger pelagic fish species. As is typical with auk species, the Guadalupe Murrelet feeds by diving under the water, propelling itself with its wings.

Baby Guadalupe Murrelets are highly precocial. This means that they are able to care for themselves at a very early age. The chicks leave the nest after just two days, joining their parents at sea.
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Details & Statistics

Added to Birdorable
Hatched on 31 January 2016
Scientific Name
Synthliboramphus hypoleucus
  • Charadriiformes
  • Alcidae
  • Synthliboramphus
  • S. hypoleucus
Birdorable Family
Conservation Status
Endangered (as of 5 May 2020)
  • Least Concern (LC)
  • Near Threatened (NT)
  • Vulnerable (VU)
  • Endangered (EN)
  • Critically Endangered (CR)
  • Extinct in the Wild (EW)
  • Extinct (EX)
Source: IUCN Red List
Units: Imperial / Metric
9 to 9.8 inches
15.7 inches
4.6 to 6.5 ounces


From IUCN Red List:
The Guadalupe Murrelet is listed as Endangered on the IUCN Red List and was last assessed in 2014 by BirdLife International. This newly split species is listed as Endangered because it occupies a very small range when breeding, nesting on only a very few islands and islets, and is inferred to be in on-going decline owing mainly to the impacts of invasive mammalian predators. If it is found to be breeding at more than five locations, the species may warrant downlisting to a lower threat category.

International Names

Chinese (汉语) 白腹海雀
Czech (Cesky) alkoun kalifornský
Danish (Dansk) Brun Dværgalk
Dutch (Nederlands) Xantus' Alk
Finnish (Suomi) kalifornianmurri
French (Français) Guillemot de Xantus
German (Deutsch) Lummenalk
Italian (Italiano) Urietta di Xantus
Japanese (日本語) セグロウミスズメ [seguroumisuzume]
Norwegian (Norsk) Kaliforniastarik
Polish (Polski) morzyk piskliwy
Portuguese (Português) Mérgulo-de-asas-claras
Russian (русский язык) Пыжик ксантуса
Spanish (Español) Mérgulo de la Guadalupe
Swedish (Svenska) guadalupealka
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