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The largest concentration of motmots reside in Honduras and Guatemala, with a total of 7 subspecies. It is also the national bird of Nicaragua and El Salvador. There is also evidence that the male tail, which is slightly larger than the female tail, functions as a sexual signal in the turquoise-browed motmot.
On the Phylogeny and Classification of Living Birds, by Charles G. Sibley; The Early History of Modern Birds Inferred from DNA Sequences of Nuclear and Mitochondrial Ribosomal Genes, by Marcel van Tuinen, Charles G. Sibley, and S. Blair Hedges; Sibley's Classification of Birds, by Eric Salzman, Birding, December 1993. The Web version lacks the ...
List of bird genera concerns the chordata class of aves or birds, characterised by feathers, a beak with no teeth, the laying of hard-shelled eggs, ...
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.
In the late 1960s, morphological studies began to suggest that the Australo-Papuan fairywrens, the grasswrens, emu-wrens and two monotypic wren-like genera from New Guinea were related and, following Charles Sibley's pioneering work on egg-white proteins in the mid-1970s, Australian researchers adopted the family name Maluridae in 1975.
Astur atricapillus (Wilson, A, 1812) 170 Meyer's goshawk: Accipitridae: Astur meyerianus (Sharpe, 1878) 171 Doria's hawk: Accipitridae: Megatriorchis doriae Salvadori & D'Albertis, 1875: 172 Western marsh harrier: Accipitridae: Circus aeruginosus (Linnaeus, 1758) 173 Eastern marsh harrier: Accipitridae: Circus spilonotus Kaup, 1847: 174 Papuan ...
Images in bird articles should be added with care and captioned carefully. If the taxobox is empty - consider adding one that shows the full bird, preferably facing into the text. If the species is sexually dimorphic, you may consider adding a second image to the taxobox, or distribute the other images in the text carefully.