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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.
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]
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. [7]
Large sums of money are spent by ardent bird feeders, who indulge their wild birds with a variety of bird foods and bird feeders. Over 55 million Americans over the age of 16 feed wild birds and spend more than $3 billion a year on bird food, and $800 million a year on bird feeders, bird baths, bird houses and other bird feeding accessories. [22]
They argue that people feel the simple companionship of birds, are inspired by them to create art, let them mark the seasons and provide a sense of place, and use them "as symbols of joy and love". [59] A former statesman, Edward Grey, 1st Viscount Grey of Fallodon, was able to express his feeling for birds in his 1927 book The Charm of Birds. [60]
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 ...
The oldest fossil evidence for paravians — the dinosaur group that includes the earliest birds and their closest relatives — appears around the middle of the Jurassic Period (201.3 million to ...
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).