They spend the winters in Central America or the Deep South, then head up here to raise a family. Their arrival here is usually the same time the American columbine is blooming. Get a smallish feeder with only a couple of ports. Do not bother using fancy hummingbird mixtures. All you need is ordinary sugar and water - a quarter cup of sugar in a cup of water.
Experts say boiling the sugar-water helps slow the growth of bacteria.
Do not add red dye. It's not necessary and it may be harmful. Empty and clean the feeder every three or four days, more often in hot weather. Otherwise bacteria that may harm the birds can flourish. If the sugar solution starts getting cloudy, change it.