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Its southern end encompasses Australia and New Zealand. Between these extremes the flyway covers much of eastern Asia, including China , Japan , Korea , South-East Asia and the western Pacific . The EAAF is home to over 50 million migratory water birds from over 250 different populations, including 32 globally threatened species and 19 near ...
[34] [35] However most bird migration is in the range of 150 to 600 m (490–2,000 ft). Bird strike Aviation records from the United States show most collisions occur below 600 m (2,000 ft) and almost none above 1,800 m (5,900 ft). [36] Bird migration is not limited to birds that can fly. Most species of penguin (Spheniscidae) migrate by ...
The second part (Section V) of the book summarises what is known to date of the different species of birds in our region. Where there are adequate data each bird is described under the heads: Field Characteristics and General Habits; Status in Australia; Migration; Voice; Display; Breeding; Enemies and Mortality; Breeding Distribution.” [1]
The sooty shearwater undertakes an annual migration cycle that rivals that of the Arctic tern; birds that nest in New Zealand and Chile and spend the northern summer feeding in the North Pacific off Japan, Alaska and California, an annual round trip of 64,000 kilometres (40,000 mi). [64]
The Arctic tern has the longest migration journey of any bird: it flies from its Arctic breeding grounds to the Antarctic and back again each year, a distance of at least 19,000 km (12,000 mi), giving it two summers every year. [19] Bird migration is controlled primarily by day length, signalled by hormonal changes in the bird's body. [20]
The bar-tailed godwit is a non-breeding migrant in Australia and New Zealand. Birds first depart for their northern hemisphere breeding sites at age 2–4. [23] Breeding take place each year in Scandinavia, northern Asia, and Alaska. The nest is a shallow cup in moss sometimes lined with vegetation. Clutch size is from 2 to 5, averaging four. [7]
Adult near Burrow on Bruny Island. The photograph was taken at night. Fledgling, Austins Ferry, Tasmania, Australia. The short-tailed shearwater or slender-billed shearwater (Ardenna tenuirostris; formerly Puffinus tenuirostris), also called yolla or moonbird, and commonly known as the muttonbird in Australia, is the most abundant seabird species in Australian waters, and is one of the few ...
The sooty shearwater was formally described in 1789 by the German naturalist Johann Friedrich Gmelin under the binomial name Procellaria grisea. [2] The shearwater had been briefly described in 1777 by James Cook in the account of his second voyage to the Pacific, but without a valid scientific name; [3] and also in 1785 the English ornithologist John Latham had described a museum specimen ...