I got this specialty galvanized wire from The Chicken Hutch in Arizona a couple years ago and have used it to build durable bird-proof blueberry cages. And also raptor proof chicken runs. This roll was $400 plus shipping. New in the box.
Convenient because the enclosure can be built 6' tall (for standing) with one roll of wire, and the 1/2" mesh keeps out the smaller birds.
Not available in Washington BTW. Asking for $200. Sold as a whole roll only.