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An opportunist predator hidden in the vegetation: on the predation of birds by Philodryas olfersii (Serpentes: Dipsadidae)
(Taylor & Francis Ltd, 2021-01-01)
Snakes are common predators of birds. However, reported cases of snake predation on Troglodytes musculus are scarce. Here, we report a predation attempt of a Troglodytes musculus nestling by the dipsadid snake Philodryas ...
Attack on Chestnut-bellied Euphonia nestlings by army ants
(2000-09-01)
I report some observations of a Chestnut-bellied Euphonia (Euphonia pectoralis) nest in a lowland Atlantic Forest of southeastern Brazil during the early nestling period. During 7.5 hours of observations, the nest was ...
Attack on Chestnut-bellied Euphonia nestlings by army ants
(2000-09-01)
I report some observations of a Chestnut-bellied Euphonia (Euphonia pectoralis) nest in a lowland Atlantic Forest of southeastern Brazil during the early nestling period. During 7.5 hours of observations, the nest was ...
Parental risk-taking behaviour and nest defence during the nestling rearing stage in Northern House Wrens Troglodytes aedon
(Museum and Institute of Zoology, Polish Academy of Sciences, 2013-03)
Risk-taking behaviour of short lived nesting birds is often explained in relation to the reproductive value of offspring (the reproductive value hypothesis) and the harm that the absence of parental care can cause to ...
Plasticity of parental care under the risk of predation: how much should parents reduce care?
(The Royal Society, 2013-08)
Predation can be an important agent of natural selection shaping parental care behaviours, and can also favour behavioural plasticity. Parent birds often decrease the rate that they visit the nest to provision offspring ...
Reduction of nestlings' vocalizations in response to parental alarm calls in the Southern House Wren, Troglodytes musculus
(Wiley Blackwell Publishing, Inc, 2011-04)
Breeding birds often give alarm calls when a predator is near the nest. These calls have been proposed to serve as distraction displays for the predator, alerts for a mate conveying information about the presence of a ...
Variation in parental care in the spectacled tyrant Hymenops perspicillatus is associated with increased nest predation in grassland fragmentsUnterschiede in der Brutpflege beim Brillentyrann steht in Verbindung mit einer erhöhten Nest-Prädationsrate in fragmentiertem Grasland
(Wiley Blackwell Publishing, Inc, 2016-04)
Predation risk on birds is often an important source of natural selection that shapes parental care and may promote behavioral changes. Parents can often estimate certain risks and adjust their behavior to reduce the ...
Sloths in the diet of a Harpy Eagle nestling in eastern Amazon
(2000-12-01)
-Prey remains of a nestling Harpy Eagle (Harpia harpyja) over 15 months in eastern Amazon, Brazil included 11 two-toed sloths (Choloepus didactylus), 9 three-toed sloths (Bradypus variegatus), and 1 gray four-eyed opossum ...
Sloths in the diet of a Harpy Eagle nestling in eastern Amazon
(2000-12-01)
-Prey remains of a nestling Harpy Eagle (Harpia harpyja) over 15 months in eastern Amazon, Brazil included 11 two-toed sloths (Choloepus didactylus), 9 three-toed sloths (Bradypus variegatus), and 1 gray four-eyed opossum ...