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The average global population of all mature birds is estimated to be on the order of 100 billion individuals. [1] [2] [3] The total population including younglings is somewhat higher during the breeding season of each species. [3] This list is incomplete, because experts have not estimated all bird numbers.
Pages in category "Lists of birds by population" The following 29 pages are in this category, out of 29 total. This list may not reflect recent changes. ...
This is a list of Gaviiformes species by global population. While numbers are estimates, they have been made by the experts in their fields. For more information on how these estimates were ascertained, see Wikipedia's articles on population biology and population ecology. All Gaviiformes have been quantified.
Estimate for mature individuals only. Broader range of population estimated at 800–1,600. The estimate to the left is the best available. Species needs further study due to severe declines in population in recent decades. [33] Lava gull: Larus fuliginosus: 900-1,200 [34] VU [34] [34] Equal to 600-800 mature individuals. May be an overestimate ...
In total there are about 11,000 species of birds described as of 2024, [1] though one estimate of the real number places it at almost 20,000. [2] The order passerines (perching birds) alone accounts for well over 5,000 species.
The taxonomic treatment [3] (designation and sequence of orders, families and species) and nomenclature (common and scientific names) used in the accompanying bird lists adheres to the conventions of the AOS's (2019) Check-list of North American Birds, the recognized scientific authority on the taxonomy and nomenclature of North America birds.
The 2012 observation of 721 birds showed that levels have remained the same over recent years, and the current full estimate need not be changed. [6] For more information on how these estimates were ascertained, see Wikipedia's articles on population biology and population ecology.
This list of owls is not comprehensive, as not all Strigiformes have had their numbers quantified. For a simple list of all owl species, see the article "List of owl species". Extinct species: Bermuda saw-whet owl, described from fossil records and explorer accounts of the bird in the 17th century. [1] Laughing owl, last seen in 1914. [2]