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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.
Charles Gald Sibley (August 7, 1917 – April 12, 1998) was an American ornithologist and molecular biologist.He had an immense influence on the scientific classification of birds, and the work that Sibley initiated has substantially altered our understanding of the evolutionary history of modern birds.
A turning point came in the early twentieth century with the writings of Gerhard Heilmann of Denmark.An artist by trade, Heilmann had a scholarly interest in birds and from 1913 to 1916, expanding on earlier work by Othenio Abel, [12] published the results of his research in several parts, dealing with the anatomy, embryology, behavior, paleontology, and evolution of birds. [13]
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).
According to some estimates, modern birds (Neornithes) evolved in the Late Cretaceous or between the Early and Late Cretaceous (100 Ma) and diversified dramatically around the time of the Cretaceous–Paleogene extinction event 66 million years ago, which killed off the pterosaurs and all non-ornithuran dinosaurs. [7] [8]
Birds (and their more reptilian cousins, the Crocodilia) are the modern-day legacy of dinosaur’s 165-million-year-long stint on Earth. While our avian friends’ Mesozoic origin story isn’t up ...
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.
[1] This is a list of the bird species recorded in the country of Georgia in the Caucasus. The avifauna of Georgia includes 412 species, according to the latest update. [2]The taxonomic treatment of this list (designation and sequence of orders, families and species) and nomenclature (common and scientific names) follow the conventions of International Ornithological Committee (IOC) World Bird ...