Bird dreams of olympus Mons

Biologists and ecologists of the late 20th and early 21st century have all but removed all doubt at least scientifically (supposedly) that animals like a bird cannot dream. I choose not to believe this. Infact I believe that this is not true in reality. I do wonder, however what they dream about. Do they gaze up at the emerging stars on a cold fall evening and see the shiny things in the sky, and wonder? Do they dream of flying across the great gulf and endless sky to pluck that shiny thing and stash it in their nest? Or do they dream of flying there and roosting on the tree of some alien landscape and peer back across that place we call earth? Do they gaze upon the moon and dream in their slumber of spreading their wings over a silent and dead world? But despite the answers..I still think a bird can dream.