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PREDATION OF PALE-BREASTED THRUSH EGGS BY THE ARIEL TOUCAN IN BRAZIL: FAILURE OF THE ANTI-PREDATORY STRATEGY Acta biol.Colomb.
MOLINA MARTÍNEZ,Yair Guillermo.
ABSTRACT The Channel-billed Toucan (Ramphastos vitellinus) is an omnivorous bird that eventually is nest-robbers. Several birdsongs display anti-predatory strategies such as attacks and mobbing calls to face this kind of predator. This note reports a predatory event of one Channel-billed Toucan upon eggs of Pale-breasted Thrush (Turdus leucomelas) and describes the anti-predatory behavior, principally alert and mobbing calls of the thrush. Even though the Pale-breasted Thrush displayed the anti-predatory behaviors to harass the toucan, the egg predation was not avoided. Although the predation upon eggs by Ramphastos vitellinus has been reported several times, the majority of reports lack the identity of the bird species affected, this being the first...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Acoustic signal; Mobbing behaviour; Nest predators; Alarm call; Call of persecution.
Ano: 2021 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2021000200278
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Nest stolen: the first observation of nest predation by an invasive exotic marmoset (Callithrix penicillata) in an agricultural mosaic Biota Neotropica
Alexandrino,Eduardo Roberto; Luz,Daniela Tomasio Apolinario da; Maggiorini,Erica Vanessa; Ferraz,Katia Maria Paschoaletto Micchi de Barros.
Invasive exotic species can negatively impact local biodiversity. We present here a report of a nest predation of an endemic bird species, variable oriole (Icterus pyrrhopterus) by the introduced black-tufted marmoset (Callithrix penicillata) in an agricultural landscape highly disturbed by human activities. Two nestlings were predated, by adults of the introduced marmoset during two alternate days. Antipredator behavior and vocal mimicry were observed in variable oriole, while copulation was observed in black-tufted marmoset during the predation. The use of mobbing against predators by I. pyrrhopterus was observed and it is described here by the first time. The potential impact of the introduced marmosets to local biodiversity is discussed.
Tipo: Info:eu-repo/semantics/other Palavras-chave: Invasive alien species; Birds; Mobbing behaviour; Nest predation; Nest defense.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000200021
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Miscellaneous ecological notes on Brazilian birds of prey and owls Biota Neotropica
Motta-Junior,José Carlos; Granzinolli,Marco Antonio Monteiro; Monteiro,Alberto Resende.
Sixteen opportunistic field observations of eight species of Brazilian raptors (Falconiformes and Strigiformes) are reported here as a contribution to the knowledge of the natural history of these poorly studied birds in Brazil. The observations are related to the food habits (Buteo albicaudatus, Herpetotheres cachinnans, Milvago chimachima, Falco femoralis), reproduction (Asio stygius, Megascops choliba), mobbing behaviour elicited in other birds (Geranospiza caerulescens, H. cachinnans, F. femoralis, A. stygius, Athene cunicularia) and a rare case of leucism in owls (A. cunicularia).
Tipo: Info:eu-repo/semantics/other Palavras-chave: Falconiformes; Strigiformes; Food habits; Breeding; Mobbing behaviour; Leucism; Brazil.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000400042
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Ferruginous Pygmy-owl (Glaucidium brasilianum) predation on a mobbing Fork-tailed Flycatcher (Tyrannus savana) in south-east Brazil Biota Neotropica
Motta-Junior,José Carlos.
I observed, and documented in detail, Ferruginous Pygmy Owl (Glaucidium brasilianum) predation on a mobbing Fork-tailed Flycatcher (Tyrannus savanna) in south-east Brazil. Events described in this account are supported with original photos. In addition to the predation event, I list 12 mobbing bird species that were alarmed by the presence of this raptor in the study area, including Trochilidae (Eupetomena macroura), Formicariidae (Formicivora rufa), Tyrannidae (Camptostoma obsoletum, Elaenia cristata, E. flavogaster, E. chiriquensis, T. savana, Myiarchus tyrannulus), Turdidae (Turdus leucomelas, T. amaurochalinus, T. rufiventris) and Emberizidae (Coryphospingus cucullatus). The Fork-tailed Flycatcher may represent 35-76.8% of the pygmy-owl body mass...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Owls; Tyrant-flycatchers; Mobbing behaviour; Predation; Eyespots; Brazil.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032007000200038
Registros recuperados: 4
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