BIRD DAMAGE AT AQUACULTURE FACILITIES
Damage Prevention and Control Methods
Completely enclose small ponds, tanks, and/or raceways with screen or
Partially covered systems with overhead wire, line, screen, or netting.
Perimeter fencing or wires.
Metal spines, cones, or electrified wires for roosting problems.
Consideration of local bird populations, construction of pond margins
and bottom profile, location of fingerling ponds, and feeding techniques
may lessen damage.
Various devices available include reflecting tapes, eyespot balloons,
scarecrows, automatic exploders, pop-up scarecrows with exploders,
pyrotechnics, alarm or distress calls, lights, water spray devices.
Aerial harassment with ultralight aircraft, radio-controlled model
airplanes; ground harassment with
Roost dispersal may move depredating birds from the area.
Avitrol® is a chemical frightening agent for herring gulls and
None are approved for use by federal or state agencies.
Except for some blackbirds, trapping is not allowed without a permit
from the US Fish and Wildlife Service and upon recommendation by the
USDA-APHIS-Wildlife Services. Permits are issued to
compliment ongoing nonlethal methods. Check county or state permit
Same as for trapping, except that some blackbirds may be shot. Ducks may
be hunted during waterfowl hunting seasons.