Thirty Thousand Miles in the Wanderer PDF

Please forward this error screen to cpanel32. 98, kept in the aviary of C. Its common name is derived from the French word passager, meaning „passing by“, due thirty Thousand Miles in the Wanderer PDF the migratory habits of the species. The passenger pigeon was sexually dimorphic in size and coloration.

Författare: C. L. F. Robinson.

Though one genetic study concluded that the bird was not always that abundant, and that the population size fluctuated dramatically over time, a more recent study, drawing on far more genetic data, found that the passenger-pigeon population size had been stable for the 20,000 years prior to „its 19th-century decline and eventual extinction. Passenger pigeons were hunted by Native Americans, but hunting intensified after the arrival of Europeans, particularly in the 19th century. Pigeon meat was commercialized as cheap food, resulting in hunting on a massive scale for many decades. In 1827 William John Swainson moved the passenger pigeon from the genus Columba to the new monotypic genus Ectopistes, due in part to the length of the wings and the wedge shape of the tail. The physically similar mourning dove is not closely related.

The passenger pigeon was a member of the pigeon and dove family, Columbidae. The passenger pigeon differed from the species in the genus Zenaida in being larger, lacking a facial stripe, being sexually dimorphic, and having iridescent neck feathers and a smaller clutch. In a 2012 study, the nuclear DNA of the passenger pigeon was analyzed for the first time, and its relationship with the Patagioenas pigeons was confirmed. DNA in old museum specimens is often degraded and fragmentary, and passenger pigeon specimens have been used in various studies to discover improved methods of analyzing and assembling genomes from such material. DNA samples are often taken from the toe pads of bird skins in museums, as this can be done without causing significant damage to valuable specimens.

The genus name, Ectopistes, translates as „moving about“ or „wandering“, while the specific name, migratorius, indicates its migratory habits. The full binomial can thus be translated as „migratory wanderer“. The tail pattern was distinctive as it had white outer edges with blackish spots that were prominently displayed in flight. The lower throat and breast were richly pinkish-rufous, grading into a paler pink further down, and into white on the abdomen and undertail covert feathers. The undertail coverts also had a few black spots.