Glareolidae

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Pratincoles and coursers
Small pranticole.jpg
Little pratincole, Glareola lactea
Indian Courser (Cursorius coromandelicus) at Bharatpur I IMG 5437.jpg
Indian courser, Cursorius coromandelicus
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Class: Aves
Order: Charadriiformes
Suborder: Lari
Family: Glareolidae
CL Brehm, 1831
Genera

Glareolidae is a family of birds in the wader suborder Lari. It contains two distinct groups, the pratincoles and the coursers. The atypical Egyptian plover (Pluvianus aegyptius), traditionally placed in this family, is now known to be only distantly related (basal of clade Charadrii).

Contents

The family contains 17 species in 4 genera. [1]

Description

The feature that defines the family from the rest of the order is the bill, which is arched and has the nostrils at the base. The pratincoles have short legs, long pointed wings and long forked tails. They have a buoyant flight that allows them the unusual (for the order) hunting technique of taking their insect prey on the wing like swallows. The wings also allow for long migrations in some species. The coursers have long legs, which are used to run (giving the group its name). The wings are shorter and have a more sustained flight than that of the pratincoles.

Distribution and habitat

The pratincoles and coursers have an Old World distribution, occurring in southern Europe, Asia, Africa (including Madagascar), and Australia. The family is thought to have evolved in Africa, which is where the family achieves its greatest diversity, although fossils of the genus Glareola belonging to an extinct species Glareola neogena are known from the Middle Miocene of Europe, while of similar age is of the extinct Mioglareola gregaria also from European deposits. The older glareolid fossils are of the genus Paractiornis from the Lower Miocene of North America. [2]

The fossil genera and species are:

The coursers are typically found in open and arid environments such as deserts and scrub. The three-banded courser and bronze-winged courser are exceptions, being found in woodland and usually away from open land. The subfamily is usually also associated with lowland areas, although the Burchell's courser is found in southern Africa's Afro-alpine areas. The pratincoles are associated with wetlands, rivers, estuaries and other inland waterways. As with the coursers there are exceptions, particularly the black-winged pratincole which breeds and feeds on open steppes.

Some species of pratincole are long-distance migrants. Shorter migrations include those of the Madagascar pratincole, which migrates from its breeding grounds in Madagascar to East Africa; in contrast the black-winged pratincole migrates from the steppes of Eastern Europe and Central Asia to West and Southern Africa. The migration, which can measure 10,000 km (6,200 mi) in distance, is often undertaken as a single non-stop flight and is flown at high altitude. The coursers are not particularly migratory, although the cream-colored courser does migrate from the northern extremes of its range in the winter. The coursers are fairly nomadic, but do not undertake long-distance migrations. [2]

Behaviour

The coursers are crepuscular and nocturnal in their habits, and are generally inconspicuous, particularly the woodland species. They are not as social as the highly gregarious and noisy pratincoles, some species of which may also be active at dawn and dusk.

Diet and feeding

Insects form the majority of the diet of the Glareolidae. The pratincoles forage mainly on the wing, but are able to take prey on the ground as well. They are opportunistic, and have been recorded attending herds of antelope to snatch insects flushed up by their movement, or even insects attracted to street lights. Swarming insects, such as locusts or termites, are particularly targeted. Coursers are exclusively terrestrial, and feed in a plover-like fashion, running, then stopping to scan for prey before moving on. Some species may dig for insects in soft soil with their bills. In addition to insects, coursers may also take molluscs and some seeds. [2]

Related Research Articles

<span class="mw-page-title-main">Charadriiformes</span> Order of birds

Charadriiformes is a diverse order of small to medium-large birds. It includes about 390 species and has members in all parts of the world. Most charadriiform birds live near water and eat invertebrates or other small animals; however, some are pelagic (seabirds), others frequent deserts, and a few are found in dense forest. Members of this group can also collectively be referred to as shorebirds.

<span class="mw-page-title-main">Pratincole</span> Subfamily of birds

The pratincoles or greywaders are a group of birds which together with the coursers make up the family Glareolidae. They have short legs, very long pointed wings and long forked tails.

<span class="mw-page-title-main">Collared pratincole</span> Species of bird

The collared pratincole, also known as the common pratincole or red-winged pratincole, is a wader in the pratincole family, Glareolidae. As with other pratincoles, it is native to the Old World.

<span class="mw-page-title-main">Black-winged pratincole</span> Species of bird

The black-winged pratincole is a wader in the pratincole bird family, Glareolidae. The genus name is a diminutive of Latin glarea, "gravel", referring to a typical nesting habitat for pratincoles. The species name commemorates the Finnish-born zoologist and explorer Alexander von Nordmann.

<span class="mw-page-title-main">Oriental pratincole</span> Species of bird

The oriental pratincole, also known as the grasshopper-bird or swallow-plover, is a wader in the pratincole family, Glareolidae.

<span class="mw-page-title-main">Cream-colored courser</span> Species of bird

The cream-colored courser is a wader in the pratincole and courser family, Glareolidae. Both parts of the scientific name derive from Latin cursor, "runner", from currere, "to run" which describes their usual habit as they hunt their insect prey on the ground in dry open semi-desert regions of the Middle East and northern Africa.

<span class="mw-page-title-main">Small pratincole</span> Species of bird

The small pratincole, little pratincole, or small Indian pratincole is a small wader in the pratincole family, Glareolidae.

<span class="mw-page-title-main">Egyptian plover</span> Species of bird

The Egyptian plover, also known as the crocodile bird, is a wader, the only member of the genus Pluvianus. Formerly placed in the pratincole and courser family, Glareolidae, it is now regarded as the sole member of its own monotypic family Pluvianidae.

<span class="mw-page-title-main">Rock pratincole</span> Species of bird

The rock pratincole is a species of bird in the family Glareolidae.

<span class="mw-page-title-main">Madagascar pratincole</span> Species of bird

The Madagascar pratincole is a species of bird in the family Glareolidae. It is found in Comoros, Ethiopia, Kenya, Madagascar, Mozambique, Somalia, Tanzania, possibly Mauritius, and possibly Réunion. Its natural habitats are subtropical or tropical seasonally wet or flooded lowland grassland, rivers, freshwater lakes, rocky shores, and intertidal marshes; it migrates to the coast of East Africa in the winter. It is the rarest species in the Glareola genus, and is threatened by habitat loss.

<span class="mw-page-title-main">Australian pratincole</span> Species of bird

The Australian pratincole is a species of bird in the family Glareolidae. It breeds in Australia's interior; it winters to northern and eastern parts of the continent, Indonesia and New Guinea. It is a medium-sized nomadic shorebird which is commonly found in arid inland Australia. It breeds predominantly from south-western Queensland to northern Victoria and through central Australia to the Kimberley region in Western Australia. The Australian population is estimated at 60,000 individuals. They are a migratory species that generally move to the southern parts of their distribution range to breed during spring and summer. During winter they migrate to northern Australia, New Guinea, Java, Sulawesi and southern Borneo to over-winter. Although they are common, their occurrence is unpredictable and varies in location.

References

  1. Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (July 2021). "Sandpipers, snipes, Crab-plover, coursers". IOC World Bird List Version 11.2. International Ornithologists' Union. Retrieved 19 December 2021.
  2. 1 2 3 Maclean, G.L. (1996). "Family Glareolidae (Coursers and Pratincoles)" . In del Hoyo, J.; Elliott, A.; Sargatal, J. (eds.). Handbook of the Birds of the World. Vol. 3: Hoatzin to Auks. Barcelona, Spain: Lynx Edicions. pp. 364–383. ISBN   978-84-87334-20-7.