Blue Petrel

The blue petrel (Halobaena caerulea) is a small seabird in the shearwater and petrel family, Procellariidae. This small petrel is the only member of the genus Halobaena, but is closely allied to the prions. It is distributed across the Southern Ocean but breeds at a few island sites, all close to the Antarctic Convergence zone. == Taxonomy == The blue petrel was first described in 1777 by the German naturalist Georg Forster in his book A Voyage Round the World. He had accompanied James Cook on Cook's second voyage to the Pacific. Forster did not give the blue petrel a binomial name, but when the German naturalist Johann Friedrich Gmelin updated Carl Linnaeus's Systema Naturae in 1789 he included a brief description of the bird, coined the binomial name Procellaria caerulea and cited Forster's book. The blue petrel is now the only species placed in the genus Halobaena that was introduced for the blue petrel in 1856 by French naturalist Charles Lucien Bonaparte. The name Halobaena combines the Ancient Greek hals, halos meaning "sea" with bainō meaning "to tread". The specific epithet caerulea is from Latin caeruleus meaning "blue". The word "petrel" is derived from Saint Peter and the story…