I use a syringe I originally received from the vet when I had to give my cat shots. I took to needle off because I was afraid I would accidentally poke my chickens. It is a 1 ml syringe, so it has every 0.1 ml (or cc if you prefer) marked on it. It works great I just fill it to 0.25 which is enough for one bantam, then just push the plunger. No chance of too many drops this way.
