Anna's. 

Happy to report that we are past the freezing cold nights and with some feeder maintenance at least this Anna's hummingbird was kept supplied with nectar. I decided for a system of alternating with two feeders, swapping as soon as one froze. 

https://www.wildliferescue.ca/2020/12/07/hummingbirds-a-frequent-sight-in-the-winter/