Birdy Gardeners and Their Plantings

I have these two little parakeets, Mung and Sammy. They sit by a sunny window and make quite a racket! All day...

When they are eating they like to fling their seeds all over creation! I have a small cactus plant near their cage and recently many little green things began to sprout out of the pot....hum? I can't wait to see what they will become... In the meantime I think the cactus looks hysterical on my...c l e a n staircase!