Gus Ben David, a naturalist on Martha's Vineyard, has several raptors
which he flies including a Great Horned Owl trained for falconry
(owlry?). Or at least he did in 1992. I doubt it's part of a larger
program to control rabbits/rats/etc though...

If Peter Whitlock is still a tweet, he might have some input (are you
still out there Peter????)

____________________________
Mike Smith
Univ. of Washington, Seattle
whimbrel at u.washington.edu
http://salmo.cqs.washington.edu/~wagap/mike.html