Cannons doesn’t work, some birds get used to the cannons sound after 2 weeks, I had these installed in my pond and I was happy for 2 weeks… after 2 weeks I saw a cormorant seat on the cannon while it made the explosion sound, completely ignoring it... after 2 weeks the entire flock came down seating on/next to the cannon - it is a very smart animal…
Anyway, the pond is about 32 acres and I got 3 of these ponds… it means I have about 1,640 FT from one end to the other, less than 20 MPH would be too slow and by the time I get to the Pelican/Cormorant flock the damage is already done.
Last edited by eranomo; 11-03-2015 at 10:16 PM.