What if the dynamic range of the screens differ or if the screen contrast settings are different or if the colour space the image is viewed in is different or if the screen brightness settings are significantly different?
A given image will not necessarily render exactly the same on every screen for obvious reasons.
Your histogram is only for one channel.
Post the luminosity histogram.
In any case blocked up pixels cannot be recovered just like blown highlights cannot be.
Therefore your editing has created false details.
Fwiw this is what I see on my screen when I look at the histogram and edit you posted. There is a lot of false looking purplish and greenish detail there which is not realistic at all.
I still see some details in the black feathers in my version. Whether they are accurate or not I don't know.
People can look at my image and decide for themselves how much, if any, detail they see.

