When I realized I had full sun & a fairly large patio after we moved east a couple of years ago, I put out a little hummingbird feeder in my new garden and attracted one male Costa hummingbird. If the feeder is less than 2/3's full, he fusses at me. Sometimes he poses for pictures; I hardly ever get good ones.
This fall I added a second feeder with four holes thinking I'd attract more hummers. So far, this guy has it monopolized. On one occasion, he brought home a girl (we were thrilled!) and we remain hopeful!
Your pictures are awesome!