The drug of choice for raising pigeons chicks and other chick of grain eaters is more A19. A21 is also good, but is more appropriate for very young chicks or debilitated adult Körnerfresser that need to be force-fed. The energy content, ie sugar content is higher in A21, that is not necessary in a healthy pigeon chicks. (Below the blueprint of a feeding syringe, all the ingredients are in a pharmacy to buy cheap: heated syringe without a needle and IV line will be cut off the edge with a lighter, so it has no sharp points..)
