Depends...
If you have a plastic big milk jug, cut the hole out and hang it up and put in bird seed, atomatic bird feeder.
Glass ones you can wrap colored paper around the bottle and tape it, then...
NO! Take puppy formula or condensed milk an a ceringe an slowly push down on the cerenge then after feeding it take a warm Q-tip (cotton ear swab) an Wipe its "Genitals" So it can use the bathroom,...