Why are red hackle's red?

Red hackles are red primarily due to the selective breeding of chickens, specifically the Red Pyle or Red Game breeds, which have been favored for their vibrant plumage. The red coloration is a result of genetic traits that enhance the presence of pigments such as pheomelanin, which produces red and yellow hues. Additionally, these chickens have been bred for specific aesthetic qualities in the context of poultry shows and fly tying, where the striking color adds visual appeal.