Conservation Evidence strives to be as useful to conservationists as possible. Please take our survey to help the team improve our resource.

Take the survey
Providing evidence to improve practice

Individual study: Hand-reared gray partridges Perdix perdix take-off at a lower angle and slower speed than wild-caught birds in an ex situ experiment

Published source details

Putaala A., Oksa J., Rintamaki H. & Hissa R. (1997) Effects of Hand-Rearing and Radiotransmitters on Flight of Gray Partridge. The Journal of Wildlife Management, 61, 1345-1351


This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.

Artificially incubate and hand-rear gamebirds in captivity Bird Conservation

A replicated ex situ study in 1993 and 1994 in Finland (Putaala et al. 1997) found that hand-reared grey partridges Perdix perdix took flight with a shallower take off angle (average of 31o tested on 12 birds) and climbed more slowly (climbing rate of 1.8 m/s for 11 birds) than wild-caught birds (average 44o for 19 birds tested and 2.7 m/s for 18 birds), potentially making them more vulnerable to predation from ground predators.