Some observations made at the first recorded nest of the Sharpbill Oxyruncus cristatus

Brooke, M. de L.; Scott, Derek Anthony; Teixeira, Daniella

doi:10.1111/j.1474-919x.1983.tb03109.x

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…In Tityridae, species in the genus Tityra place their nests in cavities ( figure 2 d ), while dome nests hanging from branches are present in the becards (genus Pachyramphus ), with several species distributed in semi-open habitats. The sharpbill, the single species in the family Oxyruncidae, builds a cup nest placed in branches in closed habitats [ 92 ].…”

Section: Resultsmentioning

confidence: 99%

Evolution of nest architecture in tyrant flycatchers and allies

Ocampo

Silva

Sheard

et al. 2023

Phil. Trans. R. Soc. B

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Innovations in nest design are thought to be one potential factor in the evolutionary success of passerine birds (order: Passeriformes), which colonized new ecological niches as they diversified in the Oligocene and Miocene. In particular, tyrant flycatchers and their allies (parvorder: Tyrannida) are an extremely diverse group of New World suboscine passerines occupying a wide range of habitats and exhibiting substantial extant variation in nest design. To explore the evolution of nest architecture in this clade, we first described nest traits across the Tyrannida phylogeny and estimated ancestral nest conditions. We then quantified macroevolutionary transition rates between nest types, examined a potential coevolutionary relationship between nest type and habitat, and used phylogenetic mixed models to determine possible ecological and environmental correlates of nest design. The Tyrannida ancestor probably built a cup nest in a closed habitat, and dome nests independently evolved at least 15 times within this group. Both cup- and dome-nesting species diversified into semi-open and open habitats, and we did not detect a coevolutionary relationship between nest type and habitat. Furthermore, nest type was not significantly correlated with several key ecological, life-history and environmental traits, suggesting that broad variation in Tyrannida nest architecture may not easily be explained by a single factor. This article is part of the theme issue ‘The evolutionary ecology of nests: a cross-taxon approach’.

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Section: Resultsmentioning

confidence: 99%

Evolution of nest architecture in tyrant flycatchers and allies

Ocampo

Silva

Sheard

et al. 2023

Phil. Trans. R. Soc. B

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The Relationships of the Sharpbill (Oxyruncus cristatus)

1984

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The Sharpbill (Oxvruncus cristatus) is a Neotropical suboscine passerine whose affinities have been unclear. The tyrant flycatchers, cotingas, and manakins of the superfamily Tyrannoidea have been suggested as the closest relatives of the Sharpbill. DNA-DNA hybridization comparisons between the radioiodine-labeled single-copy DNA of the Sharpbill and the DNAs of cotingas, manakins, tyrant flycatchers, and representatives of the other Neotropical superfamily, the Furnarioidea, indicate that Oxyruncus is a cotinga. We place it in the subfamily Cotinginae, family Tyrannidae. The Sharpbill (Oxyruncus cristatus) is a medium-sized (ca. 16 cm) suboscine passerine with a straight, pointed bill and short rictal bristles. In the adult male the crested crown has a crimson center bordered by olive feathers tipped with black. The back is bright olivegreen, wings and tail blackish, underparts white with black spots, and the flanks pale greenishyellow. The plumage colors of the adult female are less intense than those of the male and the coronal stripe is inconspicuous. The Sharpbill apparently has a discontinuous range in the humid montane forests of Costa Rica, Panama, southeastern Venezuela, southern Guyana and Surinam, northeastern and southeastern Brazil, southern Paraguay, and central Peru (Mees 1974, Traylor, 1979). Extensive field observations of the Sharpbill have not been recorded but Sick (197 1) reviewed the sparse literature and reported on his encounters with the species during his many years of field studies in Brazil. He found that Sharpbills tend to occur most often in dense tall forest, although they sometimes feed on fruits at the forest edge or in solitary trees. Fruits are the principal food but insects have been found in the stomachs of specimens and Sick observed Sharpbills hanging upside down from twigs to capture insect larvae. The vocalizations are relatively simple and similar to those of certain cotingas. Sick found the birds most often in pairs and in mixed flocks of tanagers, furnariids, troupials, cotingas, woodpeckers, etc. feeding on fruiting trees. A captive Sharpbill ate fruits and cast hard pellets composed of the skins. Bangs and Barbour (1922) also observed Sharpbills feeding in fruiting trees with cotingas; Mees (1974) found them solitary, in pairs, and in mixed bird swarms in Surinam. Wetmore

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Some observations made at the first recorded nest of the Sharpbill Oxyruncus cristatus

Cited by 2 publications

References 3 publications

Evolution of nest architecture in tyrant flycatchers and allies

Evolution of nest architecture in tyrant flycatchers and allies

The Relationships of the Sharpbill (Oxyruncus cristatus)

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