<trp-post-container data-trp-post-id='360032'>Rufous Mourner

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En bref

  • Scientific Name: Rhytipterna holerythra
  • Spanish Name: Churrinche
  • Famille : Tyrannidae
  • Known Nicknames: Rufous Mourner, Rufous Mourner Flycatcher
  • Average Length: 19–20 cm / 7.5–7.9 in
  • Average Weight: 33–39 g / 1.2–1.4 oz
  • Envergure : N/A
  • Key Feature: Entirely rich rufous plumage with a pale throat and a slightly crested crown
  • Primary Diet: Insectivore and Frugivore
  • Range: Southern Mexico to western Ecuador
  • Habitat: Humid lowland and foothill forest, forest edges, and second growth
  • Structure sociale : Solitaires ou en couples
  • Nidification/Reproduction : Nid en forme de coupe ouverte dans la fourche d'un arbre
  • Statut de conservation : Préoccupation mineure (LC)
  • Évolution démographique : Stable

The Rufous Mourner (*Rhytipterna holerythra*) is a strikingly plain yet captivating songbird of Central and South American lowland forests, renowned for its extraordinary vocal mimicry. With a uniform, warm rufous-brown plumage that blends seamlessly into the shadowy understory, it lacks bold markings, relying instead on a slender, slightly decurved bill and a gentle, mournful expression. Its most special feature is its astonishing ability to imitate the calls of other birds and even mechanical sounds, delivered in a soft, melancholic series of whistles that give the species its common name. Despite its drab appearance, this master of disguise uses its vocal prowess for communication and possibly deception, making it a fascinating, if elusive, resident of the rainforest.

Faits amusants

The Rufous Mourner is a master of deception: it is a dedicated brood parasite, laying its eggs in the nests of other birds like flycatchers and manakins, but unlike cuckoos, its chicks do not evict the host’s young, instead competing directly for food alongside them. Its haunting, descending whistle—often described as a mournful "pee-ur"—is so distinctive that locals in its Central and South American range recognize it by sound alone. Despite its drab, all-rufous plumage, it has a surprisingly loud and complex song repertoire, and it often flicks its tail downward in a nervous, jerky motion while foraging, a quirky habit that helps flush out hidden insects.

Habitats et répartition

The Rufous Mourner is primarily found in the lowland humid forests of the Caribbean slope, from southeastern Mexico through Central America to western Colombia and northwestern Ecuador. It inhabits the dense understory and middle levels of tall, wet evergreen forests, often near streams or swampy areas, and is also recorded in adjacent tall second-growth woodland and forest edges. Its distribution is generally continuous within this region, though it is considered local and uncommon in many parts of its range, rarely venturing into open or dry habitats.

Comportements & Reproduction

The Rufous Mourner is typically solitary or found in pairs, with a social structure centered on a monogamous bond during the breeding season. Mating habits are not extensively documented, but like many tyrant flycatchers, courtship likely involves vocal duets and short aerial displays. The species is a known brood parasite host, particularly for the Striped Cuckoo, which is a unique reproductive challenge rather than a strategy of the mourner itself. The female constructs a cup-shaped nest in a tree fork, where she lays a clutch of two eggs, and both parents share incubation and feeding duties, though the male’s role may be more pronounced in defending the territory.

Alimentation

The Rufous Mourner is primarily a frugivorous bird, with its diet heavily centered on small, fleshy fruits and berries plucked directly from trees and shrubs in the understory and mid-canopy of lowland rainforests. However, it is also an opportunistic insectivore, actively gleaning insects, spiders, and other small arthropods from the undersides of leaves and branches, often while hovering briefly or making quick sallies from a perch. Interestingly, this species is known to follow army ant swarms, not to eat the ants themselves, but to capture the multitude of insects and other invertebrates that flee from the advancing ant columns. This dietary flexibility allows it to exploit both stable fruit resources and temporary, protein-rich insect bonanzas, making it a versatile forager.

Couleurs

The Rufous Mourner is a uniformly warm rufous-brown bird with slightly paler underparts and a faintly grayish throat. It lacks bold markings or streaking, giving it a plain, monotone appearance that provides effective camouflage against tree trunks and branches in its shaded rainforest understory habitat. Its dark eyes and bill are subtle, and the sexes are alike in coloration.

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