Deer and Herons

rick valley bamboogrove at
Fri Jun 15 11:56:19 EDT 2001

>I've been thinking how to protect a tiny pond of fish from herons but
>maintain its ornamental aspects.  The solution may be a battery powered
>motion detector that controls the valve of a sprinkler.  The offending warm
>blooded animal or forgetful or unwarned human would get a shot of water for
>30 seconds when detected.
I've heard of motion detectors turning on lights and sound at fence 
openings (like a driveway) to scare deer.
I've seen nylon monofilament strung above a pond for herons, and heard of 
some success using decoy heron sculptures ("somebody's already fishing") 
but you must move the decoy often...

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