A few years ago I was constructing an outdoor aviary for my cockatiels. I was using plans that included hardware cloth. I was kinda disappointed because I couldn't see them even looking a few feet out the window onto the furtherest part of the porch. I then read a technique of using a paintbrush to etch the zinc galvanizing with vinegar (this also keeps parrots from getting zinc poisoning). I then went to the paint store and purchased black flat enamel paint. Coat your hardware cloth by painting with a stiff paintbrush. You will have to go the other side to paint that as well. You may use spray type paint but, it doesn't cover nearly as well. Let it dry a couple of days. Results in that you will be able to see your chickens from very far away and the black hardware cloth almost becomes invisible. Sorry meant hardware cloth.... haha!