An inexpensive radar-activated scaring system reduces avian landings on a 18.2 ha desulfurization pond, USA
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Published source details
Johansson C.A., Hardi P.J. & White C.M. (1994) An inexpensive fully automated hazing system reduces avian landings on a 45 acre defended pond by 97% Unpublished report to Region 6. Washington, DC: US Fish and Wildlife Service, USA.
Published source details Johansson C.A., Hardi P.J. & White C.M. (1994) An inexpensive fully automated hazing system reduces avian landings on a 45 acre defended pond by 97% Unpublished report to Region 6. Washington, DC: US Fish and Wildlife Service, USA.
Actions
This study is summarised as evidence for the following.
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Use visual and acoustic ‘scarers’ to deter birds from landing on pools polluted by mining or sewage Action Link |
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Use visual and acoustic ‘scarers’ to deter birds from landing on pools polluted by mining or sewage
Two controlled experiments at a 18.2 ha desulfurisation pond in north-central USA (Johansson et al. 1994) found that significantly fewer birds landed on ponds where a scaring system was in place (autumn and spring 1993-1994: 17 birds used a pond when the system was active for 48 hour periods vs. 125 when it was inactive for 48 hour periods; autumn 1994: 16 of 43,964 bird landings, 2% of the expected number, occurred on the pond with the system). The radar-activated system (a BirdAvert© system) used various deterrents (broadcasts of recordings of e.g. dogs barking, guns firing and falcons screaming; strobe light; plastic falcons with flapping wings, and automated scarecrows).
