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Birders in Canada and the United States refer to several families of long-legged wading birds in semi-aquatic ecosystems as waders.These include the families Phoenicopteridae (flamingos), Ciconiidae (storks), Threskiornithidae (ibises and spoonbills), Ardeidae (herons, egrets, and bitterns), and the extralimital families Scopidae (hamerkop) and Balaenicipitidae (shoebill) of Africa. [1]
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 smallest member of this group is the least sandpiper, small adults of which can weigh as little as 15.5 grams (0.55 oz) and measure just over 13 centimetres (5 inches). The largest species is believed to be the Far Eastern curlew , at about 63 cm (25 in) and 860 grams (1 pound 14 ounces), although the beach thick-knee is the heaviest at ...
Recurvirostridae is a family of large wading birds which includes the avocets and stilts. The avocets have long legs and long up-curved bills. The stilts have extremely long legs and long, thin, straight bills. Black-winged stilt, Himantopus himantopus [note 5] LC; Black-necked stilt, Himantopus mexicanus LC; American avocet, Recurvirostra ...
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Storks are large, heavy, long-legged, long-necked wading birds with long stout bills and wide wingspans. They lack the powder down that other wading birds such as herons, spoonbills, and ibises use to clean off fish slime. Storks lack a pharynx and are mute. Black stork, Ciconia nigra (accidental) [14] (not on the AOS Check-list)
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[5] [6] Beyond 55 leg pairs, examples are listed only if they represent especially significant maximum numbers (e.g., most legs in the animal kingdom) or exhibit notably little intraspecific variation in leg number. This list draws examples from three broad groups of animals: tetrapods (with 0 to 2 leg pairs, [7] [8] providing three examples ...