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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
Hume's Wheatear is a large wheatear with a dark black head and back contrasting sharply with a pure white breast and belly. Both sexes exhibit this same coloration. While closely resembling the male of the 'picata' form of Variable Wheatear , key distinctions include Hume's Wheatear's larger size, a more substantial bill, and longer wings.
Gannets are large white birds with yellowish heads, black-tipped wings and long bills. Northern gannets are the largest seabirds in the North Atlantic, having a wingspan of up to two metres (6 + 1 ⁄ 2 feet). The other two species occur in the temperate seas around southern Africa, southern Australia, and New Zealand.
3 Eastern meadowlark: Sturnella magna (Linnaeus, 1758) 4 Chihuahuan meadowlark: Sturnella lilianae Oberholser, 1930: 5 Red-breasted meadowlark: Leistes militaris (Linnaeus, 1758) 6 White-browed meadowlark: Leistes superciliaris (Bonaparte, 1850) 7 Peruvian meadowlark: Leistes bellicosus (de Filippi, 1847) 8 Long-tailed meadowlark: Leistes loyca ...
Accipitridae is a family of birds of prey, which includes hawks, eagles, kites, harriers, and Old World vultures. These birds have very large powerful hooked beaks for tearing flesh from their prey, strong legs, powerful talons, and keen eyesight. Fifteen species have been recorded in Washington. White-tailed kite, Elanus leucurus (A)
Passerines, the "song birds". This is the largest order of birds and contains more than half of all birds. Family Acanthisittidae. Genus Acanthisitta - rifleman; Genus Xenicus - New Zealand wrens; Family Acanthizidae - scrubwrens, thornbills, and gerygones Genus Acanthiza – thornbill; Genus Acanthornis – scrubtit; Genus Aethomyias ...
Sphere packing theorems in dimensions 8 and 24 (geometry, modular forms) Stark–Heegner theorem (number theory) Subspace theorem (Diophantine approximation) Sylvester's theorem (number theory) Takagi existence theorem (number theory) Thabit ibn Qurra's theorem (amicable numbers) Thue's theorem (Diophantine equation)
ln – natural logarithm, log e. lnp1 – natural logarithm plus 1 function. ln1p – natural logarithm plus 1 function. log – logarithm. (If without a subscript, this may mean either log 10 or log e.) logh – natural logarithm, log e. [6] LST – language of set theory. lub – least upper bound. [1] (Also written sup.)