Factors influencing the behavioural development of juvenile New Zealand Falcons (Falco novaeseelandiae)Sara M. Kross A B and Ximena J. Nelson A
A School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, New Zealand.
B Corresponding author. Email: firstname.lastname@example.org
Emu 113(1) 84-87 https://doi.org/10.1071/MU12020
Submitted: 2 March 2012 Accepted: 26 September 2012 Published: 30 November 2012
Adult raptors are thought to train their progeny in flight and hunting techniques during the period of dependence after fledging. Parental teaching is poorly understood but its effects may impinge on the success of reintroduction projects where juveniles are released into areas without adults, as is commonly done with raptors. We compared behavioural development over the first 4 weeks after fledging in wild-reared juvenile New Zealand Falcons (Falco novaeseelandiae) with that of juvenile Falcons recently hack-released as part of a conservation initiative. Juveniles with parents spent nearly half as much time perching, spent twice as much time playing, and chased conspecifics five-times more often than juveniles without parents. Juveniles with siblings chased conspecifics 60 times more often, and engaged in twice as much play behaviour compared with juveniles without siblings. We suggest that, provided juvenile New Zealand Falcons are hack-released in groups, reintroduction of this threatened species without adults does not have a major effect on the behavioural development of individuals, although ongoing monitoring to corroborate these results with a larger sample size is recommended.
ReferencesBaayen, R. H. (2008) languageR: Data sets and functions with ‘Analyzing linguistic data: a practical introduction to statistics’. R package version 0.953 Available at http://CRAN.R-project.org/package=language [Verified 30 August 2010].
Bates, D., Maechler, M., and Dai, B. (2008). lme4: Linear mixed-effects models using S4 classes. R package version 0.999375. Available at http://lme4.r-forge.r-project.org/ [Verified 30 August 2010].
Bekoff, M., and Allen, C. (1997). ‘Animal Play: Evolutionary, Comparative and Ecological Perspectives.’ (Cambridge University Press: Cambridge, UK.)
Blumstein, D. T., and Fernández-Juricic, E. (2004). The emergence of conservation behavior. Conservation Biology 18, 1175–1177.
| The emergence of conservation behavior.CrossRef |
Brown, J. L., Collopy, M. W., Gott, E. J., Juergens, P. W., Montoya, A. B., and Hunt, W. G. (2006). Wild-reared Aplomado Falcons survive and recruit at higher rates than hacked Falcons in a common environment. Biological Conservation 131, 453–458.
| Wild-reared Aplomado Falcons survive and recruit at higher rates than hacked Falcons in a common environment.CrossRef |
Edwards, T. C. (1989). Similarity in the development of foraging mechanics among sibling Ospreys. Condor 91, 30–36.
| Similarity in the development of foraging mechanics among sibling Ospreys.CrossRef |
Fischer, J., and Lindenmayer, D. B. (2000). An assessment of the published results of animal relocations. Biological Conservation 96, 1–11.
| An assessment of the published results of animal relocations.CrossRef |
Heinsohn, R. G. (1991). Slow learning of foraging skills and extended parental care in cooperatively breeding White-winged Choughs. American Naturalist 137, 864–881.
| Slow learning of foraging skills and extended parental care in cooperatively breeding White-winged Choughs.CrossRef |
Kitowski, I. (2005). Play behaviour and active training of Montagu’s Harrier (Circus pygargus) offspring in the post-fledging period. Journal of Ethology 23, 3–8.
| Play behaviour and active training of Montagu’s Harrier (Circus pygargus) offspring in the post-fledging period.CrossRef |
Kitowski, I. (2009). Social learning of hunting skills in juvenile Marsh Harriers Circus aeruginosus. Journal of Ethology 27, 327–332.
| Social learning of hunting skills in juvenile Marsh Harriers Circus aeruginosus.CrossRef |
Kross, S. M., Tylianakis, J. M., and Nelson, X. J. (2012). Translocation of threatened New Zealand Falcons to vineyards increases nest attendance, brooding and feeding rates. PLoS ONE 7, e38679.
| Translocation of threatened New Zealand Falcons to vineyards increases nest attendance, brooding and feeding rates.CrossRef | 1:CAS:528:DC%2BC38XptVyktLY%3D&md5=346d302dbe96de86dc1501d42dccf896CAS |
Kross, S. M., Tylianakis, J. M., and Nelson, X. J. (). Diet composition and prey choice of New Zealand Falcons nesting in anthropogenic and natural habitats. New Zealand Journal of Ecology , .
Lévy, F., Melo, A. I., Galef, B. G., Madden, M., and Fleming, A. S. (2003). Complete maternal deprivation affects social, but not spatial, learning in adult rats. Developmental Psychobiology 43, 177–191.
| Complete maternal deprivation affects social, but not spatial, learning in adult rats.CrossRef |
Lickliter, R., Dyer, A. B., and McBride, T. (1993). Perceptual consequences of early social experience in precocial birds. Behavioural Processes 30, 185–200.
| Perceptual consequences of early social experience in precocial birds.CrossRef |
Negro, J. J., Bustamante, J., Milward, J., and Bird, D. M. (1996). Captive fledgling American Kestrels prefer to play with objects resembling natural prey. Animal Behaviour 52, 707–714.
| Captive fledgling American Kestrels prefer to play with objects resembling natural prey.CrossRef |
Newton, I. (1979). ‘Population Ecology of Raptors.’ (T. and A. D. Poyser: London.)
Pietrewicz, A. T., and Kamil, A. C. (1979). Search image-formation in the Blue Jay (Cyanocitta cristata). Science 204, 1332–1333.
| Search image-formation in the Blue Jay (Cyanocitta cristata).CrossRef | 1:STN:280:DC%2BC3cvktVOiug%3D%3D&md5=1a4f772234b66a8a91a96d1054439bb7CAS |
R Core Development Team (2008). ‘R: a Language and Environment for Statistical Computing.’ (R Foundation for Statistical Computing: Vienna, Austria.) Available at http://www.R-project.org [Verified 19 November 2012].
Reid, A. L., Seebacher, F., and Ward, A. J. W. (2010). Learning to hunt: the role of experience in predator success. Behaviour 147, 223–233.
| Learning to hunt: the role of experience in predator success.CrossRef |
Ricklefs, R. E. (2004). The cognitive face of avian life histories – the 2003 Margaret Morse Nice Lecture. Wilson Bulletin 116, 119–133.
| The cognitive face of avian life histories – the 2003 Margaret Morse Nice Lecture.CrossRef |
Sherrod, S. K., Heinrich, W. R., Burnham, W. A., Barclay, J. H., and Cade, T. J. (1982) ‘Hacking: A Method for Releasing Peregrine Falcons and other Birds of Prey.’ (The Peregrine Fund: Ithaca, NY.)
Weathers, W. W., and Sullivan, K. A. (1989). Juvenile foraging proficiency, parental effort, and avian reproductive success. Ecological Monographs 59, 223–246.
| Juvenile foraging proficiency, parental effort, and avian reproductive success.CrossRef |
Wheelwright, N. T., and Templeton, J. J. (2003). Development of foraging skills and the transition to independence in juvenile Savannah Sparrows. Condor 105, 279–287.
| Development of foraging skills and the transition to independence in juvenile Savannah Sparrows.CrossRef |