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Many sandpipers form monogamous pairs, but some sandpipers have female-only parental care, some male-only parental care, some sequential polyandry and other compete for the mate on the lek. Sandpipers lay three or four eggs into the nest, which is usually a vague depression or scrape in the open ground, scarcely lined with soft vegetation. [9]
The common sandpiper (Actitis hypoleucos) is a small Palearctic wader. This bird and its American sister species , the spotted sandpiper ( A. macularia ), make up the genus Actitis . They are parapatric and replace each other geographically; stray birds of either species may settle down with breeders of the other and hybridize .
This species nests in June–July on coastal areas in the tundra, choosing locations with grass close to freshwater pools. [6] Spoon-billed sandpipers feed on the moss in tundras, as well as smaller animal species like mosquitoes, flies, beetles, and spiders. At certain points in time, they also feed on marine invertebrates such as shrimp and ...
The pectoral sandpiper builds a steep-sided scrape nest with a considerable volume of lining material. The nest is deep enough that the eggs sit about 3 cm (1.2 in) below ground level, which helps to minimize heat loss from the cool breezes which occur at the latitudes where the species nests. [18] The female lays four eggs.
The genus name Tringa is the Neo-Latin name given to the green sandpiper by the Italian naturalist Ulisse Aldrovandi in 1599. They are mainly freshwater birds, often with brightly coloured legs as reflected in the English names of six species, as well as the specific names of two of these and the green sandpiper. They are typically associated ...
Baird's sandpiper (Calidris bairdii) is a small shorebird. It is among those calidrids which were formerly included in the genus Erolia , which was subsumed into the genus Calidris in 1973. [ 2 ] The genus name is from Ancient Greek kalidris or skalidris , a term used by Aristotle for some grey-coloured waterside birds.
The spotted sandpiper (Actitis macularius) is a small shorebird. Together with its sister species the common sandpiper ( A. hypoleucos ), it makes up the genus Actitis . They replace each other geographically; stray birds may settle down with breeders of the other species and hybridize .
The green sandpiper represents an ancient lineage of the genus Tringa; its only close living relative is the solitary sandpiper (T. solitaria). They both have brown wings with little light dots and a delicate but contrasting neck and chest pattern. In addition, both species nest in trees, unlike most other scolopacids. [2]