Songbird Essentials Clear Concentrate Hummingbird Nectar Bottle is an all natural hummingbird food product, using no artificial dyes or sweeteners. Made from pure sucrose, the sugar that is near identical to the hummingbird's natural food, flower nectar. Being a clear food concentrate, Songbird Essentials Clear Concentrate Hummingbird Nectar Bottle is easy to cleanup, also with no need to boil sugar. Just place the concentrate and water in the liquid hummingbird feeder and sit back and watch the hummingbirds gather around your backyard. 1 liter bottle.