My husband and I are planning on breeding our Silkies and possibly our Wyandottes. I want to vaccinate the chicks for Marek's. I know where to buy the syringes and the vaccine. What I don't know how to do is vaccinate a chick! I've given myself a multitude of insulin injections over the years, so it's not a matter of filling the syringe and injecting. It's more a matter of where on the chick do I inject the vaccine, and how deep does the needle go? Subcutaneous? Into a muscle? Under the wing? I'm afraid of piercing its little heart or another major organ, especially since these will be day olds. Any advice or links to this kind of info would be most welcome!