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As of January 9th 2025 according to the iGoTerra website, there are 18 birders who have added 9,000 or more species of birds to their life lists. An additional 15 birders have added at least 8,000 species of life birds. Note: all known sources of bird species life list data are self-reported. Birders with over 8,000 species include:
Ornithurae (meaning "bird tails" in Greek) is a natural group that includes modern birds and their very close relatives such as Ichthyornis and the hesperornithines.This clade is defined in the PhyloCode by Juan Benito and colleagues in 2022 as "the smallest clade containing Ichthyornis dispar, Hesperornis regalis, and Vultur gryphus".
The New World barbets are plump birds, with short necks and large heads. Most species are brightly coloured, with bold patterns of mainly green, red, yellow, white, or black. Their rictal bristles (stiff hair-like feathers at the base of the beak) are shorter and less dense than those of the Asian and African barbets .
No further detailed analyses have been published since the 1992 paper, although the British magazine Birding World has published two articles by Oscar van Rootselaar listing newly described species since 1990: van Rootselaar, Oscar (1999). "New birds for the World: species discovered during 1980 – 1999". Birding World. 12: 286–293.
Birds with teeth were common during the time of the dinosaurs, but a newly discovered species is changing the way scientists understand avian evolution.
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]
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 ...
Neoaves is a clade that consists of all modern birds (Neornithes or Aves) with the exception of Palaeognathae (ratites and kin) and Galloanserae (ducks, chickens and kin). [4] This group is defined in the PhyloCode by George Sangster and colleagues in 2022 as "the most inclusive crown clade containing Passer domesticus, but not Gallus gallus". [5]