These are all very good signs for sure! Did you treat the wound with anything? If it seems happy, I would just let it recover on it's own. Sounds like it's not a big injury.Today, I have put both doves in the outside loft as it seems that the Laughing dove has recovered enough to start "fighting" over perch space in the cage. I take this as a very good sigh . As mentioned in my first post of this thread, it is eating and drinking on its own; and this morning it was the first one to the food bowl, so there is definitely no problem there.
I will post updated photographs of its wing soon.