fourlocks wrote:
I've long used the "cup of water to quarter cup of white sugar" mixture in my feeders; I've also been told not to use store bought syrup. I wash out my feeder at every filling, usually 4 or 5 days. In this heat I notice the mixture turns a little cloudy so I change it more often. I have no idea what the chemical reaction is, that's causing the cloudiness but I figure it's not good for the birds.
not tap water.
They seem to love this mixture.