The Rare Breed

Dog Breed More Rare Than The Giant Panda Falls To Record Low. www.thekennelclub.org.uk. [2018-05-05]. （原始内容存档于2019-08-24） （英语）.  Bobby breed 'facing

Animals. [2014-12-07]. （原始内容存档于2014-12-07）.  ENDANGERED SPECIES Rare White Rhino Dies, Breed Close to Extinction. Discovery News. 2014-10-20 [2014-10-20]

[2014-01-29]. （原始内容存档于2012-08-20）.  Sanders, Michael S. An Old Breed of Hungarian Pig Is Back in Favor. The New York Times. 1 April 2009 [2014-01-29]. （原始内容存档于2017-03-24）

the Cahow, Pterodroma Cahow" Report on the Cahow rediscovery in 1951 （页面存档备份，存于互联网档案馆） Gehrman, Elizabeth. Rare Birds: The Extraordinary Tale of the Bermuda

later added to the AKC's Miscellaneous Class in 2010. Finally, in January 2013 the Chinook became the AKC's 176th breed and joined the working group.