<trp-post-container data-trp-post-id='360011'>White-tailed Kite

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En bref

  • Scientific Name: Elanus leucurus
  • Spanish Name: Elanio coliblanco
  • Famille : Accipitridae
  • Known Nicknames: Black-shouldered Kite (formerly), White-tailed Hawk
  • Average Length: 35–43 cm / 14–17 in
  • Average Weight: 250–380 g / 8.8–13.4 oz
  • Wingspan: 88–102 cm / 35–40 in
  • Key Feature: White body with black shoulders and a white tail
  • Primary Diet: Carnivore (primarily small rodents)
  • Range: Western and southern United States through Central America to southern South America
  • Habitat: Open grasslands, savannas, marshes, and agricultural fields
  • Social Structure: Solitary or in loose pairs; occasionally roosts communally
  • Nesting/Breeding: Tree fork or dense canopy, occasionally on man-made structures
  • Statut de conservation : Préoccupation mineure (LC)
  • Évolution démographique : Stable

The White-tailed Kite (*Elanus leucurus*) is a ghostly raptor of open grasslands and marshes, instantly recognizable by its pure white underparts, pale gray back, and striking black shoulders that form a distinctive “V” across its wings in flight. This medium-sized hawk possesses a unique hovering hunting style, often seen suspended in midair with rapid wingbeats as it scans for rodents, a behavior more typical of kestrels than larger raptors. Its most special feature is its bright red eyes, which contrast sharply with its chalky face, giving it an intense, owl-like stare. Unlike many birds of prey, it is highly social outside breeding season, sometimes roosting in loose communal groups, and it has a peculiar habit of storing excess prey in tree forks for later consumption—a rare trait among diurnal raptors that underscores its remarkable adaptability.

Faits amusants

White-tailed Kites are masters of aerial hovering, often seen facing into the wind with their wings fluttering rapidly like a tiny helicopter, a behavior called "kiting" that lets them spot prey from a fixed point. They have a quirky habit of "mantling" — spreading their wings and tail over a captured rodent to shield it from other predators. A unique adaptation is their ability to hunt both day and night, thanks to large eyes with a high density of rod cells, making them one of the few raptors that are truly crepuscular. They also engage in a bizarre courtship ritual where the male performs a "sky-dance," climbing high then tumbling downward while calling, and sometimes even passing food to the female in mid-air.

Habitats et répartition

The White-tailed Kite inhabits open, low-elevation environments such as grasslands, savannas, agricultural fields, marshes, and coastal prairies, where it relies on scattered perches like fence posts or low trees for hunting. It avoids dense forests and high mountains, preferring areas with a mix of short vegetation for spotting prey and nearby woodlands or riparian strips for nesting. Geographically, its range extends discontinuously from the western and southern United States (including California, Texas, and Florida) through Mexico and Central America, and into much of South America as far south as central Argentina and Chile. Isolated populations also occur in parts of the Caribbean, such as Cuba and the Bahamas, where it occupies similar open habitats.

Comportements & Reproduction

White-tailed Kites are generally monogamous, with pairs forming strong bonds that may last across multiple breeding seasons. Courtship involves the male performing dramatic aerial displays, such as sky-dancing and offering food to the female in mid-air, which reinforces the pair bond. Socially, they are typically solitary or found in pairs, though loose aggregations may occur in areas with abundant prey. A unique reproductive strategy is their ability to breed almost year-round in regions with mild winters, producing multiple broods if food is plentiful. The male plays a key role in provisioning the incubating female and later the chicks, often caching prey near the nest to ensure a steady food supply. Nests are built high in trees, and the female lays 3–5 eggs, with both parents sharing incubation duties, though the female handles most of the brooding while the male hunts.

Alimentation

The White-tailed Kite is a specialized raptor whose diet consists almost exclusively of small mammals, with voles, mice, and shrews making up the vast majority of its prey. It is an adept hunter that employs a distinctive hunting technique called "kiting," where it hovers in place against the wind, wings rapidly beating and tail fanned, to scan the ground below for movement. Once prey is spotted, it drops silently in a swift, vertical descent to seize it with its sharp talons. An interesting fact about its feeding behavior is its heavy reliance on the California vole in North America, which can cause its population to fluctuate dramatically in response to vole population cycles. Additionally, while primarily a mammal-eater, it will occasionally supplement its diet with small birds, reptiles, and large insects, such as grasshoppers and crickets, particularly when rodent numbers are low.

Couleurs

The White-tailed Kite has a pale gray back and wings, a white head, chest, and tail, with sharp black patches on the shoulder joints of the wings. Its underparts are pure white, and it has distinctive red eyes with a black comma-shaped mark behind each eye. This plumage provides camouflage against the sky when hunting, and the white tail and underparts help it blend with open, sunlit grasslands.

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