what is tonic seed
Old Canary Breeders Term. âTonic Seedâ is a term used by canary breeders to denote the black oil seeds that canaries love and all baby birds find so appealing during the weaning process.Tonic Seeds have thin, brittle hulls that are easily removed by the still soft âbabyâ beaks of your weaning chicks under the age of 5 weeks.t is also important to make sure that these oil seeds are no more than 3% of the total diet each day, as the high oil content can lead to obesity in birds confined to small cages during the breeding season. Our Tonic Seed mix contains Rape, Niger and Black Lettuce seed.