sb wrote:
The blue morpho escapes being eaten by its erratic flight and the alternating brilliant blue and drab brown as it flaps its wings. And they almost never open their wings when resting on something, so they only show the dull brown which looks like a leaf or blends in with the rainforest floor of dead leaves - the second photo confuses me, with what looks like the inside of the wing on the outside...
In that one the butterfly wings are in a deep downstroke so you are seeing the tops of its wings. Birds do the same.