Hummingbird 1 drops by

We have attempted to be a more consistent resource for the local hummingbirds that managed to make it to Maine this year. This is hummingbird-1. She? has been visiting almost every day (I assume). On one day I had a chance to observe the feeder off-and-on all day; I recorded a visit about every hour. Then, two days ago she started coming almost every fifteen minutes. Plus, hummingbird-2 showed up!