Note how the male in these first two photos has an arched tail; similar to the position a female adopts when she's ready to be mated.
I just love the expression on his face in this one. :) I think the doe may be scratching at his face.
A "friendly avian admirer" has an alternative interpretation: "The female in a 'laying-on-of-hands' with the male, as he meditates with eyes closed, on the simple deep beauty of being a roo. Too anthropomorphic an interpretation?"
Note how prehensile his penis is.