I filled the hummingbird feeder with sugar water and hung it up a couple of days ago, probably a bit early, but I see there are already some Ontario sightings of Ruby Throated hummers according to the Hummingbird Migration Map (which suddenly isn't working properly, I don't know why). EDIT UPDATE: now it's working!
But guess who decided to take advantage of a free treat, yes, Billy the tree rat er.... cute fluffy squirrel. I think he's addicted to sugar, I'll have to send him to Sugarholics Anonymous. He deserves a bad tummy ache after draining the feeder dry. I hope he doesn't tell all his friends. So far he's the only one showing up.