My experience with bird feeders is that it takes time till they find the food. Once they find it you’ll see them regularly.
Last summer I saw a decrease of hummingbirds. I went to my local Wild Birds Unlimited for advice. I was changing the nectar every 3-4 days. In the heat that doesn’t work, it needs to be changed daily or every other day. Reason: what happens to sugar water when allowed to sit and heat up – it ferments. Yep, you’re feeding the birds booze. Some birds may like but most don’t. Change the nectar often.
When that hummingbird crashes into your window after feeding, it was FWI (flying while intoxicated).
