Passwell Red Factor Canary Seed is a canary seed mix infused with red Canthaxanthin. This supplement is absorbed into the kernel of the seed and is absorbed into the bird’s bloodstream, enhancing the vibrancy of red feathers. Red Factor Canary Seed should be fed as the only seed component of the bird’s diet prior to and during the feather moult. Best results are achieved if added to the canary’s regular diet all year round to maintain high levels of circulating Canthaxanthin in the blood stream. If feeding seed as the main diet, birds may become deficient in essential vitamins, minerals, fatty acids and amino acids, particularly when breeding, It is recommended to supplement with Passwell Egg & Biscuit which contains a balance of these essential ingredients. Alternatively, vitamins and minerals may be supplied from Passwell Multi-Vite for birds, calcium and D3 from Liquid Gold and essential fatty acids from The Good Oil for Birds.