[Tweeters] Ravenous Anna's feeding at night

[Shelf Life Community Story Project]

There is a female Anna’s sitting on one of my feeders, in the dark, guzzling nectar. It’s not very cold out. She’s not torpid. The nectar is fresh yesterday. It’s been dark out for at least an hour, and she is just really hungry, sitting on the feeder for long periods of time, guzzling. I’ve never seen this before. Is this normal behavior? Should I keep an eye on her? Perhaps she’s getting ready to lay eggs and needs extra calories?

Thanks in advance for any insights. 

Jill