I should have looked at this before. I checked into Oregon and it's not illegal but you do need a permit. Several of our species or invasive from the East....., Thanks for nothing!! But more than that, it is highly NOT recommended. To quote: Writing in 1997, the Humane Society of the United States called relocation "one of the least understood and most problematic wildlife 'control' practices we know of. Not only might the trapping and movement of the animal cause it harm or even bring it death, but the activity might adversely affect other wild animals as well." More information to those interested (no matter what state you live in) here: http://audubonportland.org/backyardwildlife/brochures/relocation They make some good points.