Duration of the rehabilitation period and familiarity with the prey affect the predatory behaviour of captive wild kestrels (<i>Falco tinnunculus)</i>

Csermely, Davide

doi:10.1080/11250009309355812

Cited by 12 publications

(7 citation statements)

References 13 publications

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“…likely inducing suffocation, similarly to what is suggested in other raptor species such as the kestrel {Falco tinnunculus) and the buzzard (Buteo buteo) (Csermely et al, 1989(Csermely et al, , 1991Csermely, 1993). Moreover, the barn owls certainly become progressively used in some way to the environmental conditions during the tests, as shown by the continuous reduction of prédation latency and disappearance of the conflict patterns that were recorded mainly in the early tests.…”

Section: Discussionsupporting

confidence: 61%

Role of experience and maturation in barn owl predatory behaviour

Csermely¹,

Sponza²

1995

Bolletino di zoologia

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The predatory behaviour on mice by sample of seventeen captive barn owls (Tyto alba) was studied. The owls were divided into two groups according to their age when they entered the Rehabilitation Centre used for this study (either adults/subadults, i.e., with previous predatory experience in the wild, or as fledglings, without any experience of prey catching). The few differences between the behaviour patterns of the age groups suggested that predatory behaviour is mostly under genetic control. While most adult birds caught the mouse, only four young out of eleven studied did so. Both groups showed a decreasing trend in the latency of predation. The young birds were confused or in conflict when facing the prey, and in some cases the owl approached the mouse closely and then returned to the perch to begin a complete predatory sequence again. Three young birds of those that did not hunt were tested six months later. Two of these three young caught a mouse without any evident difficulty. The behaviour displayed by young birds and some patterns indicate that a maturation process is likely influencing the development of the predatory tendency, and do not fully support the hypothesis of the existence of some temporally well-defined periods.KEY WORDS: Predatory behaviour -Maturation -ExperienceBarn owl -Tyto alba. ACKNOWLEDGEMENTS

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Section: Discussionsupporting

confidence: 61%

Role of experience and maturation in barn owl predatory behaviour

Csermely¹,

Sponza²

1995

Bolletino di zoologia

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“…Previous observations (Csermely 1993) using similar tests did not find any effect of prolonged captivity on the latency to attack a mouse. In contrast, this study ascertained an effect limited to that behaviour pattern, i.e.…”

Section: Discussionmentioning

confidence: 62%

“…Similarly to previous observations (Csermely et al 1989), no differences in behaviour between sexes were recorded for the behaviour patterns considered, mainly latency to attack, latency to ingest and frequency of beak strikes (U-test, P>0.1). Before the attack, we recorded a very few conflict behaviour patterns, such as movements on the perch and preening activity (Csermely et al 1989;Csermely 1993), as well as exploratory flights in the pen (Table 1 ). In most tests (28 of 36), regardless of prey type, predation occurred within the first 5 min after prey appearance, while in five tests predation occurred between 5 and 8 min and in the remaining three tests it occurred after 30 min.…”

Section: Resultsmentioning

confidence: 99%

The predatory behaviour of common kestrels facing various types of prey

Csermely

Bagni

2003

Journal of Ethology

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Nine rehabilitated adult common kestrels (Falco tinnunculus) were tested for predatory behaviour. Tests were carried out individually on four different prey: two invertebrates (grasshopper and earthworm) and two vertebrates (lizard and laboratory mouse). The birds were offered prey randomly once daily, not necessarily on subsequent days. The latency to attack was similar. In contrast to predation tests with vertebrates, kestrels preying on invertebrates landed mostly (P<0.01 for earthworm and P<0.05 for grasshopper) a few centimetres from the prey itself, grasping it after a few steps. Earthworms were gripped almost invariably with the beak, but other prey with the toes. The birds struck the prey with their beak at highly variable rates (P<0.001): vertebrates mostly with the beak, while earthworms were never struck. The latency to ingest prey varied greatly (P<0.001) between prey. Captivity had only limited importance; it did not affect the behaviour sequence on any prey, but just induced kestrels in captivity for long time to attack mice with shorter latency and to strike them more with the beak. It is then demonstrated that the common kestrel has a strong behavioural plasticity even within the predatory sequence, which is then not stereotyped, and is able to modify its behaviour patterns in relation to different prey.1 Keywords. Behaviour · Behaviour plasticity · Captivity · Common kestrel · Falco tinnunculus · Predation · Reaction to prey An erratum to this article can be found at http://dx.

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“…There are studies such as Csermely 2 and Mason 9 that, despite risks, have shown that birds of prey can be rehabilitated reasonably well despite long periods of captivity suggests that birds can be rehabilitated after long recoveries. However, limited work can be found that assesses their welfare and stress during their time in captivity.…”

Section: Analysis Of Species-based Categorization Of Cases Inmentioning

confidence: 99%

Comparison of rehabilitation rates of birds of prey from a raptor rehabilitation centre ten years apart

Williams¹

2018

IJAWB

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Enforcement and definitions of aspects of legislation for the rescue and rehabilitation of wildlife has been rapidly changing in recent years. The Department of Environment Food and Rural Affairs has become stricter on keeping wildlife in temporary captivity for long periods of time. This has lead to anecdotal reports of reduced numbers of birds being released successfully or kept captive, and more euthanized on welfare grounds. Here we aimed to elucidate whether there is a significant difference in the outcomes of raptors admitted in to the Raptor Foundation at Pidley, UK in 2007 and 2017. Our results showed higher numbers of birds being euthanized and fewer being released successfully in 2017 (39.4 and 30.3% respectively) compared with 2007 (59.8 and 9.8% respectively). Statistically significant differences were found in the number of birds being euthanized and released in the two years selected. More work needs to be done to prove the causal reasons for these results, as many variables are involved.

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Duration of the rehabilitation period and familiarity with the prey affect the predatory behaviour of captive wild kestrels (Falco tinnunculus)

Cited by 12 publications

References 13 publications

Role of experience and maturation in barn owl predatory behaviour

Role of experience and maturation in barn owl predatory behaviour

The predatory behaviour of common kestrels facing various types of prey

Comparison of rehabilitation rates of birds of prey from a raptor rehabilitation centre ten years apart

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