"Hummer juice" as we make it:

Four parts water to one part white sugar (never honey). Bring to a boil and keep it there for about 10-15 seconds to make sure any microbes are dead. No dye. Keep it in the fridge for feeder fill-ups, and be sure to clean any black gunk out of feeder/rinse in hot water before refill.

We typically get one bird at a time, who sits and guards all three backyard feeders, driving off any others that dare enter! But they also work the flowers in yard and there's less competition. Bob keeps a front-yard feeder going outside his office window and it seems to capture more "transients." They do buzz us when we walk through yard and especially when I'm taking down/rehanging the feeders.

When my mother lived in Wyoming, she got dozens at a time especially when the babies came off the nest. They would perch shoulder-to-shoulder and multiple birds would drink from one outlet! Too young to know that they were supposed to be territorial.

We hear lots of vocalizing but the most common sounds just like the click of the ignitor on gas stove.