Much of a hummingbird's existence is dominated by looking for something sweet to eat. Since the middle of the 20th century, people have been hanging hummingbird feeders out their windows to attract and have the opportunity to observe these tiny, fleeting creatures. Sugar water, or simple syrup, is the traditional choice for hummingbird feeders, but if yours is a household that has replaced sugar with sugar substitutes, it is possible to use your agave nectar instead.
Measure one part agave nectar and four to five parts water into separate measuring cups. Make more than the feeder holds to have extra syrup for refilling.
Pour the water into a pot and bring it to a boil. Boiling will kill any bacteria or other contaminants in the water.
Pour the agave nectar into the boiling water. Scrape residual agave nectar from the measuring cup with a rubber spatula.
Stir the pot to ensure the nectar is dispersed then remove the syrup from the stove. Do not leave the water to boil for a long time, as it will compromise the water-to-agave nectar ratio. Allow the syrup to cool.
Fill the hummingbird feeder.
Store any excess hummingbird syrup in a sealed container in the refrigerator. Agave nectar has a shelf life of at least two years.
Empty, wash and rinse the feeder weekly during periods of cool to moderate temperatures and twice a week during periods of hot weather.