I actually can only seem to find that pic googling blue langshans for sale Lol. This is the site it goes to, I see now it's a picture from a book, I don't see anything saying copyrighted, maybe in the book?
http://thenaturalpoultryfarmingguide.org/2013/04/30/portraits-of-the-fairest-fowl/
http://thenaturalpoultryfarmingguide.org/2013/04/30/portraits-of-the-fairest-fowl/