Trees to Block Wind

I did research the other day for some trees to maybe provide shade, but I didnt mention them on the blog for some reason. One of the features was it acts as a wind block as well. These trees were dirt cheap, less then $5 each including shipping. They also grow 5 feet a year, and they are great for our grow zone of 4. This may help in reducing wind, or at least show us which way the wind is blowing. Here is a link to the tree Lombardy Poplar Hedge