I had a bad raccon problem and bought one of those ultrasonic sound
emitters with motion dection. It works very well. A far easier
solution. Dave

What is the range on these? Is the motion detector directional?

I use the Scarecrow, not sure if this is the same as what Dave is talking
about. Pictured he http://www.km01.com/gardeninghome.html

I use one on both ponds, the get-it-wet range, is at least 30 feet, with
activation further, when turned up to the most sensitive number. The one
covering the koi ponds is about 10-12 feet from the edge of the pond and
visually covers a swath of about 50ish feet. You control the sprinkler part
just like any rainbird, narrow to wide. The burst last about 3 seconds and
the reset takes about 8 seconds. I had a raccoon visit prior to
installing, he didn't catch anything, but sure made a mess. Since the
sprinkler no return visits and no losses to birds, and I have had a heron
on my roof, and a kingfisher on my flag pole, so it isn't like they don't
know it is here.

I also use fake fish to deter kingfishers. Not sure if the sprinkler would
or not. ~ jan


See my ponds and filter design:
http://users.owt.com/jjspond/

~Keep 'em Wet!~
Tri-Cities WA Zone 7a
To e-mail see website