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Problems caused by the White-faced Heron | FF0004 |
Ian Temby, Flora and Fauna Branch
June, 2003 |  |
Problem
Predation upon fish at fish hatcheries, fish farms and ornamental ponds. Predation upon yabbies at yabby farms.
Background
The White-faced Heron feeds on a range of freshwater invertebrates, frogs and fish in pastures, wetlands and around fish breeding establishments. It occasionally preys upon fish in ornamental ponds. This species is seldom likely to cause economic problems and there are few instances where destruction of offending birds would be justified.
Figure 1. White-faced Heron on nest. (Photo: Ian McCann)
Solutions
- Exclude herons from ornamental ponds by the placement of a netting cover. This can be of a material or colour which blends with the background.
- Exclude herons from fish hatcheries by placement of wires around the edges of ponds, or across shallow areas where herons are able to forage, about 15 cm above the ground or water.
- Herons will not be able to feed from ponds with vertical or steeply sloping banks (>700), if the water level is maintained at least 35 cm below the top of the bank.
- Scare herons using Bird Frite cartridges. This should be commenced as soon as the birds are first seen at the site. Note that the use of Bird Frite cartridges may not be acceptable in built-up areas. Prior clearance from local Police and municipal authorities should be obtained before these devices are used in such situations.
- If you believe it is necessary to destroy some birds in an effort to reduce the damage, you should apply to DSE for permission to destroy a specified number of birds under the conditions of an Authority to Control Wildlife, by contacting the DSE Customer Service Centre on 136 186.
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