Thanks.A lot of birds are molting right now with warmer temperatures and longer daylight hours. This means more time spent preening, and it can equal more time napping as it is an energy heavy body process.
I have not noticed my Linnie napping more here in Michigan.
I would consider how much is "more than usual" for your bird. If they are napping a lot, then I would be concerned and schedule a vet visit. Peace of mind is worth a lot to me.
@NorthernGannet Can you plz elaborate on this? She is the only bird we have."although obviously they will not be fertile if she's alone or with another female."
Birds can lay eggs without a mate. Parrots can not reproduce without being fertilized by a mate, so if she does lay eggs, they would be infertile.
All parrots have the capacity to lay eggs without a mate. Whether they will lay, and how often, depends on many factors, including diet, how they are handled, length of day, etc. They reach sexual maturity around a year, but some may start earlier or later.