Xantus's murrelet  (Synthliboramphus hypoleucus)

Crustaceans: Diverse group of arthropods (a phylum of animals with jointed limbs and a hard chitinous exoskeleton) characterised by the possession of two pairs of antennae, one pair of mandibles (parts of the mouthparts used for handling and processing food) and two pairs of maxillae (appendages used in eating, which are located behind the mandibles). Includes crabs, lobsters, shrimps, slaters, woodlice and barnacles.
Flanks: The sides of the body between the ribs and the hips.
Larval: Of the stage in an animal's lifecycle after it hatches from the egg. Larvae are typically very different in appearance to adults; they are able to feed and move around but usually are unable to reproduce.
Monogamous: Having only one mate during a breeding season, or throughout the breeding life of a pair.
Subspecies: A population usually restricted to a geographical area that differs from other populations of the same species, but not to the extent of being classified as a separate species.

1. IUCN Red List (October, 2007)
   http://www.iucnredlist.org
   
2. del Hoyo, J., Elliott, A. and Sargatal, J. (2002) Handbook of the Birds of the World. Volume 3: Hoatzin To Auks. Lynx Edicions, Barcelona.
   
3. Gaston, A.J. (1994) Ancient Murrelet (Synthliboramphus antiquus). In: Poole, A. Ed. The Birds of North America Online. Cornell Lab of Ornithology, Ithaca. Available at:
   http://bna.birds.cornell.edu/bna/species/132
   
4. Birdlife International (July, 2008)
   http://www.birdlife.org/datazone/species/index.html?action=SpcHTMDetails.asp&sid=3311&m=0
   
5. Hall, B.K. (2005) Bones and Cartilage. Academic Press, London.
   
6. Ydenberg, R.C., Clark, C.W. and Harfenist, A. (1995) Intraspecific fledging mass variation in the Alcidae, with special reference to the seasonal fledging mass decline. The American Naturalist, 145 (3): 412 - 433.
   
7. Hamilton, C.D., Golightly, R.T. and Takekawa, J.Y. (2005) Characteristics of diving in radio-marked Xantus's murrelets. Marine Ornithology, 33: 155 - 159.
   
8. Keitt, B.S. (2005) Status of Xantus's murrlet and its nesting habitat in Baja California, Mexico. Marine Ornithology, 33: 105 - 114.
   
9. National Audubon Society (September, 2008)
   http://audubon2.org/watchlist/viewSpecies.jsp?id=224
   
10. Carter, H.R., Sealy, S.G., Burkett, E.E. and Piatt, J.F. (2005) Biology and conservation of Xantus's murrelet: discovery, taxonomy and distribution. Marine Ornithology, 33: 81 - 87.
    
11. Whitworth, D.L., Carter, H.R., Young, R.J., Koepke, J.S., Gress, F. and Fangman, S. (2005) Initial recovery of Xantus's murrelets following rat eradication on Anacapa Island, California. Marine Ornithology, 33: 131 - 137.