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[1] [2] 2% of all evaluated avian species are listed as critically endangered. No subpopulations of birds have been evaluated by the IUCN. Additionally 55 avian species (0.48% of those evaluated) are listed as data deficient, meaning there is insufficient information for a full assessment of conservation status.
Two articles in the August 1962 issue of the journal British Birds, one a statistical examination by John Nelder, the other an editorial by Max Nicholson and James Ferguson-Lees, made a case using several statistical measures that a series of records of rare birds collected within a 20-mile (32 km) radius of Hastings, in Kent and Sussex, south-east England, between 1892 and 1930, should be ...
The World Center for Birds of Prey is one of the few places in the world where you can see a California condor, the largest bird in North America. Some of the world’s rarest birds are being ...
The recorded population subsequently dropped to an all-time low of only four individuals in the wild in 1974, and it was considered the rarest bird in the world. Stanley Temple from Cornell University studied this species for two years and the first attempt in 1973 to breed the birds in captivity failed because the hatchling died when the ...
The Santa Marta Sabrewing, one of the rarest birds on the planet, was missing for 64 years before it was photographed in 2010, the conservancy said. ... Now it feels like we have cracked the code ...
The yellow-billed loon is one of the Top 10 rarest birds in the U.S., and they are usually found in coastal areas, not the middle of the desert! These loons are also the largest of the loon family ...
Despite decades of intensive protection, the black stilt remains one of the rarest species of wading bird, and one of the most endangered birds in the world. The population may have numbered 500–1000 birds in the 1940s, [5] but began to rapidly decline in the 1950s, and just 68 adults were counted in 1962. [2]
It wasn't just a pretty bird. This was an extremely rare sighting. It's believed to be the first time that a Blue Rock Thrush has been seen in the United States.