Now renamed Ficaria verna, I believe, aka Lesser Celandine.

Potentilla species. not sure of which one but maybe Potentilla recta. Rhonda

the bee thing, that makes sense!! that does help...If you dont mind me asking one other question...I know that the nectar (4:1 sugar/water) is only good out for 3 days....so what I'm thinking is maybe I should only fill them part way...so as not to waste it. After looking at the feeders after 3 days (today is day 3 that I've seen them around) there is not too much gone. I have only seen a few hummers at a time feeding, and actually they dont BOTH feed at the same time, they are usually busy chasing each other off, so when the chase is done, ONE will come back and feed. I also have 3 mandevillas in bloom now and JUST NOW (as I"m typing) noticed them checking out those flowers... they are fascinating to watch...I'm just thrilled that they are here. thanks for your response.

Adding a few more photos to my previous post: