One of the most renowned herds of California bighorn sheep (Ovis canadensis california) is the Junction herd. Many of the sheep have been captured, tagged and released or relocated to other formerly inhabited ranges within British Columbia and the northwestern United States. To date, three methods have been used to capture bighorn sheep: drive netting, net gunning and drop netting. Drop netting is the preferred and generally most economic method for capturing sheep on the Junction. It can, however, be more time consuming than the other methods. Not only does the net have to be set up, it must be monitored frequently for sheep use. To alleviate the current problems associated with drop netting, an electrical system to release the net was investigated. An electrically released system would mean that sheep use would not have to be monitored as frequently, and a blaster would not be required. This would save considerable staff time and would increase the number of opportunities when the net could be dropped.
Hirsch, John W.. 1988. Electrically Triggered Drop Net to Capture Wild Sheep. Ministry of Environment. Wildlife Working Report. WR33