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Bird collections are used for a wide variety of purposes. All biological species including those of birds are represented by a holotype, the vast majority of which are full specimens (mostly skins) and in modern times explicitly designated in the original description of the taxon. All other putative members of the species may be compared to the ...
In this list of birds by common name 11,278 extant and recently extinct (since 1500) bird species are recognised. [1] Species marked with a "†" are extinct. Contents
The new tools of molecular biology changed the study of bird systematics, which changed from being based on phenotype to the underlying genotype. The use of techniques such as DNA–DNA hybridization to study evolutionary relationships was pioneered by Charles Sibley and Jon Edward Ahlquist, resulting in what is called the Sibley–Ahlquist ...
Birds feature in the flag designs of 17 countries and numerous subnational entities and territories. [327] Birds are used by nations to symbolise a country's identity and heritage, with 91 countries officially recognising a national bird. Birds of prey are highly represented, though some nations have chosen other species of birds with parrots ...
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Usage of collective nouns Notes Further reading External links Generic terms The terms in this table apply to many ...
In the United States, the collection and possession of wild bird eggs is also restricted, and in some cases is a criminal act. Depending on the species, the Migratory Bird Treaty Act , [ 17 ] the Lacey Act , [ 18 ] the Endangered Species Act , [ 19 ] or other laws may apply.
The ratites are mostly large and long-legged, flightless birds, lacking a keeled sternum. Traditionally, all the ratites were place in the order Struthioniformes . However, recent genetic analysis has found that the group is not monophyletic, as it is paraphyletic with respect to the tinamous , so the ostriches are classified as the only ...
A significant portion of the audiovisual content available in Birds of the World is collected through citizen science data collection as provided by eBird, [3] but content is also included from the Macaulay Library, as it was gathered in the Internet Bird Collection by Josep del Hoyo, the initial founder of Lynx Edicions, and his colleagues in ...