Splendid photos, Erika! I don't know how you are able to capture hummingbirds - they move so fast my eyes can't keep up with them!
I don't have feeders for hummingbirds but my neighbor does. I've see a few from time-to-time at her feeder but they disappear in a flash. And, I've never heard a hummingbird make a sound. I was surprised when you said Big Red screeches.
Truly amazing pictures of amazing birds!