In the past, I have posted my opinion that monarch butterflies are one of the more difficult butterflies to photograph. The key to great butterfly photography is to get the eyes in focus.
Monarchs hide their eyes with little white spots on a black background.
This greatly cropped photo is from one of the clearest photos I have taken to date of the eyes. Still, they don’t really pop out at you, do they?
If you look closely, right below the back part of the eye you can see the small, vestigial front legs common to all butterflies in the “brushfoot” group. They don’t show up well, either.
Why do monarchs hide their eyes?