Have you noticed that Cardinals are always the last birds at the feeders after sunset? I can go all day without seeing them, and just after sunset they arrive with their entire family to feed. Like clockwork. I've seen them out there when it was almost completely dark, taking advantage of the solar light feeder.
Yes. The Cardinals and the Hummers are always the last to go to bed. Sometimes I see the Cardinals other times of the day, and sometimes not. They are usually out early in the morning too.