They can see red as they will peck at anything that color. A injured bird will be pecked to death by other chickens if blood is visible. Red colored brooder lamps are used so everything looks red. lol
https://www.backyardchickens.com/t/134231/do-chickens-see-colors-or-black-and-white http://www.usc.edu/CSSF/Current/Projects/J2201.pdf http://www.sciencedaily.com/releases/2010/02/100216101159.htm http://www.livescience.com/8099-chickens-color-humans.html More than you wanted to know... LOL CG
Ha, yeah. My hens were laying everywhere but the nesting boxes so I bought some plastic Easter eggs to put in the boxes. They were brightly colored but I ended up using the green ones. Hope it works.
