We recommend using a homemade solution of:
Four parts water and one part table sugar (4 to 1).
Some experts suggest that a stronger solution(3 to 1) may be also appropriate.
It is appropriate to boil the water,then mix in the sugar;it is also appropriate to use room temperature water.
We recommend changing the solution at least twice weekly;more frequently in hot weather.
Our position on store-bought, commercial preparations containing red food coloring:
We recommend NOT using solutions containing red food coloring,as this is non-essential to hummingbird nutrition, and it may be harmful to the birds. This is a very controversial subject.