I'm convinced that deer are very sensitive to blue, likely as a way to distinguish among all the shades of green in their environment. They browse selectively, and the shades of green vary among plants. Those shades of green result from blends of blue and yellow. When a plant dies, it loses the blue and only the yellow (or red, in some cases) is left.That’s what everyone says but they pay more attention to the white side of their tail than we do red and blue strobe lights.
So yellow and blue make green right? So the green leaves are reflecting both Yellow and blue light in order for us to see green. Do deer see leaves as blue?