<trp-post-container data-trp-post-id='359643'>White-barred Piculet

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En bref

  • Scientific Name: Picumnus cirratus
  • Spanish Name: Piculito barrado
  • Family: Picidae
  • Known Nicknames: White-barred Piculet, White-barred Woodpecker
  • Average Length: 9–10 cm / 3.5–3.9 in
  • Average Weight: 10–15 g / 0.35–0.53 oz
  • Envergure : 14–16 cm / 5,5–6,3 pouces
  • Key Feature: Small size with a white-spotted black crown and white-barred underparts
  • Primary Diet: Insectivore (primarily ants and beetle larvae)
  • Range: Eastern and southern Brazil, Paraguay, northeastern Argentina
  • Habitat: Lowland tropical and subtropical forests, forest edges, and secondary growth
  • Structure sociale : Solitaires ou en couples
  • Nesting/Breeding: Tree cavities excavated in dead wood
  • Statut de conservation : Préoccupation mineure (LC)
  • Évolution démographique : Stable

The White-barred Piculet (*Picumnus cirratus*) is a tiny, energetic woodpecker found in South America, easily distinguished by its compact size—barely larger than a sparrow—and its striking, zebra-like plumage. Its back and wings are boldly barred in black and white, while the underparts are softly spotted, and the male sports a vivid red or orange patch on its crown. Unique among piculets, it has a short, chisel-like bill and a stiff tail used for bracing against tree trunks, yet it lacks the powerful drilling ability of larger woodpeckers, instead gleaning insects from bark and twigs with delicate, rapid pecks. A special feature is its distinctive, high-pitched trilling call, often heard before the bird is seen, as it flits acrobatically through forest edges and gardens.

Faits amusants

The White-barred Piculet is a master of an unusual feeding strategy called “ant-following,” but with a twist—rather than trailing army ants, it often accompanies coatis, snatching insects flushed by their foraging. Its tail feathers are uniquely stiff and pointed, acting like a third leg to brace against bark, allowing it to hammer tiny holes in dead wood with a rapid, insect-like tapping that sounds more like a woodpecker ten times its size. Despite being one of the smallest woodpeckers in the world, it fiercely defends its territory by puffing up its head feathers and performing a bizarre “bowing dance” while emitting a high-pitched trill, a display that often confuses larger birds into retreating.

Habitats et répartition

The White-barred Piculet inhabits a variety of forested and semi-open environments, including humid lowland forests, gallery forests, secondary woodlands, and forest edges. It is also commonly found in plantations, parks, and gardens, showing a preference for areas with dense undergrowth, bamboo thickets, and dead trees or branches where it can forage for insects. This species is generally associated with tropical and subtropical climates, occurring from sea level up to around 1,200 meters in elevation. Its geographical range spans central and eastern South America, including parts of Brazil (from the Amazon basin south to Rio Grande do Sul), eastern Bolivia, Paraguay, and northern Argentina (as far south as Buenos Aires Province). It is considered resident throughout its distribution, with no significant migratory movements.

Comportements & Reproduction

The White-barred Piculet is generally solitary or found in pairs, especially during the breeding season. Mating habits involve mutual courtship displays, including soft calls and tapping on branches to reinforce pair bonds. Both sexes participate in excavating a nest cavity in dead wood or termite mounds, a crucial reproductive strategy as they do not reuse old nests. The female lays a clutch of 2–4 white eggs, which both parents incubate for about 14–15 days. After hatching, both adults share feeding duties, and the chicks fledge after roughly 21–24 days. A unique strategy is their reliance on ant and termite colonies near the nest for a steady food supply during chick-rearing, reducing foraging travel time. Pairs typically stay together for a single breeding season but may reunite in subsequent years if territory remains stable.

Alimentation

The White-barred Piculet (Picumnus cirratus) is an insectivorous bird whose diet consists almost entirely of small arthropods, primarily ants and their larvae, which it extracts from bark, dead wood, and leaf litter using its small, chisel-like bill. Unlike larger woodpeckers, it does not excavate deep holes but instead gleans and probes for prey on the surface or in soft, decaying wood, often tapping lightly to disturb hiding insects. An interesting fact is that it frequently forages in mixed-species flocks, where it takes advantage of prey stirred up by other birds, and it has been observed consuming small spiders and beetles, though ants make up the vast majority of its intake. Additionally, it occasionally supplements its diet with tiny berries or plant matter, but this is rare and likely occurs only when insects are scarce.

Couleurs

The White-barred Piculet has a brownish-olive back and wings with fine pale barring, a whitish belly streaked with dark brown, and a distinctive black-and-white barred crown. Males show a red patch on the crown, while females lack this. Its underparts are lightly spotted, and the face has a white supercilium and dark eyestripe. This cryptic pattern provides excellent camouflage against tree bark in its forest habitat.

Distribution Map

Places linked to this species. A sighting is never guaranteed.