<trp-post-container data-trp-post-id='360672'>Picui Ground Dove

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En bref

  • Scientific Name: Columbina picui
  • Spanish Name: Palomita picuí
  • Family: Columbidae
  • Known Nicknames: Picui Dove, Picui Ground-Dove, Torcacita, Palomita Picuí
  • Average Length: 17–19 cm / 6.7–7.5 in
  • Average Weight: 40–60 g / 1.4–2.1 oz
  • Wingspan: 27–30 cm / 10.6–11.8 in
  • Key Feature: Scaled, iridescent wing patches (speculum) in flight; small, compact body with a short tail
  • Primary Diet: Granivore (primarily seeds, also small fruits and insects)
  • Range: Central South America (eastern Bolivia, southern Brazil, Paraguay, Uruguay, northern Argentina) to central Chile
  • Habitat: Open and semi-open areas, including grasslands, agricultural fields, savannas, scrublands, and urban gardens
  • Social Structure: Often seen in pairs or small flocks; loosely social
  • Nesting/Breeding: Flimsy stick nest built in low trees, shrubs, or on the ground
  • Statut de conservation : Préoccupation mineure (LC)
  • Évolution démographique : Stable

The Picui Ground Dove (*Columbina picui*) is a small, delicate bird native to South America, known for its subtle beauty and ground-foraging habits. Roughly the size of a sparrow, it features a mostly gray-brown body with a distinctive scaly pattern on its chest and wings, a pale blue-gray crown, and a striking white-tipped tail that flashes in flight. One of its most unique characteristics is its iridescent, coppery-purple patch on the inner wing—visible only when it stretches or takes off—while its soft, rhythmic cooing call often betrays its presence in open grasslands, farmlands, and urban parks. Unlike many doves, it rarely perches high and instead scurries along the ground, bobbing its head as it pecks for seeds, making it a charmingly unobtrusive observer of human activity.

Faits amusants

The Picui Ground Dove has a quirky, almost comical courtship display where the male puffs up his chest, rapidly bows his head, and coos in a rhythmic, mechanical fashion that sounds like a tiny, creaky engine. It possesses a unique adaptation for desert survival: it can drink water via a specialized "sucking" action rather than the typical head-tilting sip of most birds, allowing it to quickly hydrate at scarce waterholes. Another odd behavior is its "foot-stamping" while foraging, where it rapidly taps the ground with one foot to startle hidden seeds or insects into movement. Despite its small size, it is fiercely territorial during breeding, and pairs will aggressively chase off much larger birds, including doves twice their size, with a burst of frantic wing-flapping and sharp pecks.

Habitats et répartition

The Picui Ground Dove occupies a broad range across central and eastern South America, from eastern Bolivia, Paraguay, and southern Brazil (including São Paulo and Rio Grande do Sul) south through Uruguay and into central and northern Argentina, reaching as far as Río Negro Province. Its distribution also extends into the Gran Chaco region and the Chilean side of the Andes in the north. This species is highly adaptable to open and semi-open environments, commonly inhabiting dry savannas, scrublands, grasslands, agricultural fields, pastures, and disturbed areas near human settlements, including parks and gardens. It avoids dense, humid forests and is typically found in lowland areas below 1,500 meters in elevation, thriving in arid to mesic conditions where bare ground and low vegetation provide foraging opportunities for seeds.

Comportements & Reproduction

The Picui Ground Dove is generally observed in pairs or small, loose flocks, especially during non-breeding periods, but maintains a monogamous pair bond for the breeding season. Mating involves a simple courtship display where the male bows and coos while puffing out his chest feathers, often following the female on the ground. The nest is a flimsy platform of twigs and grass, typically built low in a shrub, cactus, or tree fork, with both sexes contributing to construction and incubation. A unique reproductive strategy is their ability to breed multiple times in a single season, often laying two white eggs per clutch, with a rapid incubation period of about 12–14 days and chicks fledging within two weeks, allowing for high reproductive output in favorable conditions. The pair shares parental duties, including feeding the young with crop milk, a nutrient-rich secretion regurgitated by both parents.

Alimentation

The Picui Ground Dove is primarily granivorous, with its diet consisting almost entirely of small seeds foraged directly from the ground, favoring those from grasses, weeds, and agricultural crops such as sorghum and millet. Interestingly, these doves are highly dependent on water sources and will travel significant distances daily to drink, but they obtain very little moisture from their dry seed diet, requiring them to drink by sucking water up continuously without lifting their heads. They also occasionally supplement their seed intake with small insects and snails, particularly during the breeding season to gain extra protein for egg production.

Couleurs

The Picui Ground Dove has a grayish-brown back and wings with subtle black spots, a pale pinkish-buff breast and belly, and a distinctive white stripe across the wing in flight. Its head is soft gray, and the tail shows white outer tips. This muted, mottled plumage blends seamlessly with dry, open ground and stubble fields, providing excellent camouflage against predators.

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