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Providing evidence to improve practice

Individual study: A rotating water spray deters gulls and terns from circular fish ponds Älvkarleby municipality, Uppsala, Sweden

Published source details

Svensson K.M. (1976) Rotator for protecting circular fish ponds against predatory birds. The Progressive Fish-Culturist, 38, 152-154

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

Spray water to deter birds from ponds Bird Conservation

A replicated study from Älvkarleby municipality, Sweden (Svensson 1976), found that a rotator device for protecting small, circular fish ponds from gulls and terns deterred birds. Increased water pressure and intermittent spraying (instead of continuous) increased effectiveness but birds often became accustomed to the spray.