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The basal bird Archaeopteryx, from the Jurassic, is well known as one of the first "missing links" to be found in support of evolution in the late 19th century. Though it is not considered a direct ancestor of modern birds, it gives a fair representation of how flight evolved and how the very first bird might have looked.
Modern birds would have expanded from West Gondwana through two routes. One route was an Antarctic interchange in the Paleogene. The other route was probably via Paleocene land bridges between South America and North America, which allowed for the rapid expansion and diversification of Neornithes into the Holarctic and Paleotropics. [8]
A few days before Halloween, data collectors at the Jekyll Island Banding Station (JIBS) observe a steady, yet predictable, decline of birds in nets, signaling the end of migration.
In 2015, the national flock suffered due to the spread of bird flu, affecting birds in fourteen states, leading to layoffs. [24] A May 2015 report by the Associated Press reported that 10% of egg laying chickens were dead or dying due to bird flu. [25] Beginning in June 2015, rationing of eggs had begun, leading to increased egg prices. [26]
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The ornithologist John Gould's bird illustrations, in books such as A Century of Birds hitherto unfigured from the Himalaya Mountains (1830–1833) with 80 plates, and his 7-volume The Birds of Australia (1840–1848) with 600 plates, related directly to his research, were both beautiful and scientifically useful. [123]
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1933 – Nagamichi Kuroda publishes Birds of the Island of Java (2 Volumes, 1933–36). 1934 – Roger Tory Peterson publishes his Guide to the Birds, the first modern field guide. 1934–37 – Brian Roberts is the expedition ornithologist on John Rymill's British Graham Land Expedition (BGLE).