As revealed in a subsequent post, the wings are both from the original frame. Only the head was replaced with the head of the same bird about 1/1000 sec. later…

Your belated explanation does not make much sense to me and “I think I see” cannot be construed as evidence.

Lastly, you ignored my request for evidence in the original post: ” If the latter, please state your evidentiary case clearly.”

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I regret that I did not see your request for evidence earlier.

I had no real evidence; just hints. I notice my comment was unclear as to right and left wings from an observer’s stand point versus the bird’s.

Anyway I looked at the sharpness of the eye, bill tip, wing tips and toes. All are very sharp save the bird’s right wing tip which is the least sharp. I judged the toes on both feet as the sharpest. Even so all six spots are sharper that my skill level-I am fortunate to have one other than the eye very sharp. I then pondered your recent blogs on the thin focal plane with close subjects and long lenses: it seemed difficult to place five points in a narrow focal plane with the bird’s right tip being only slightly out. The bird’s right wing tip (least sharp) seemed to fit with the sharp toes, leaving the bird’s left wing, eye and bill tip all in about the same plane/sharpness.

Next the bird’s right wing seems to be falling faster than the left wing as evidenced by the more ruffled feathers. The bird’s left wing is more open and should be gaining more lift which should bring the body into a more vertical position as the bird lands. The position of the bird’s left wing seems a little exaggerated versus the body orientation. All of these change as a bird lands, but the feet are in the same plane for a bird preparing to land and the bird is looking to the left while carrying dinner to chicks that are likely located near where it is landing.

Finally I think I see a stitch going from the bird’s right shoulder down across the breast to a spot beneath the bird’s left wing. Barrett