If you can't remove the perch, try controllingbirds of prey by changing the situation on the ground. Brush piles and dense shrub plantings offer wildlife a place to hide. Scaring and other control measures for tilapia aquaculture systems. predatorybirds. Use of mostly non-lethal techniques to controlpredatorybirds is common in many farms. Control of predatory wild birds can be licensed where predation is causing significant declines in a wild bird prey species.View information notes on common predators There is very little cost associated with this method of predatorcontrol, but it is difficult to measure the success of this initiative in reducing the presence of predatorybirds. Den Destruction. Nests of all kinds can be vulnerable to attacks from predators, such as Blue Jays, crows, grackles, and many other species of birds, mammals, and reptiles. Only two species increased relative to the general trend for moorland and one of them was Carrion Crow (a species that was being actively removed as part of predationcontrol measures). The Migratory Bird Treaty Act protects all hawks and owls in the United States and makes it illegal to arrest or kill them without special permission. Planning PredatoryControl. As predatorcontrol is often time-consuming and expensive, the greatest benefits will accrue where it is used as a supplement to habitat management. The Canadian Wildlife Service regulates the availability the permits necessary to control most predatorybirds. ControllingBirdPredation at Aquaculture Facilities: Frightening Techniques. Scott C. Barras and Kristina C. Godwin*. and enhanced fertilization in. controllingpredation on tilapia. and catfish aquaculture systems. by four piscivorous water bird. Table 2 . Results of logistic regression models for separate and interactive influences of various pond treatment effects on the success of deterring birds against predation on pond fish. Nest predator exclusion is one of the most widely used methods for reducing predation, particularly for ground-nesting species, but studies testing its effectiveness have shown mixed results. An Effective BirdPredationControl Program. Advice from several sources provides a realistic approach to birdpredatorcontrol at most aquacultural facilities (83,112).
