Baby Jackdaw (Corvus monedula) from nestling to 5 weeks RESCUE

Nestling baby jackdaw had fallen from it's nest (on 27th May 2022). I'm guessing it was approximately 1 week old as its eyes were closed. I really wasn't sure if it would last the first night with it being so young and fragile, and having fallen from such a great height.
Normally - advice is mainly LEAVE BABY BIRDS ALONE (as their parents are more than likely watching over it) but, with no parents in sight and as there was no way it could have flown back into the nest (which was no-where in sight / therefore may also have been taken from its nest by another bird, then dropped) - the only thing to do was to initially care for it.
*You may wish to contact a wild life rehabilitation centre, but if there isn't one near you, here's what I did:
HOW TO CARE FOR A NESTLING / BABY BIRD:
1) Gently look for OBVIOUS INJURIES? (If there are any, contact a vet).
2) Keep it WARM.
3) Keep it HYDRATED - try to get some nutrients and liquid into it.
I mashed some cooled boiled water into some dog meat and syringe fed it very little (as it would have a small stomach) and often. If you don't have this, you can mash boiled eggs with a little cooled boiled water. Do not give it cold food straight from the fridge.
The next day, we were astonished when it lifted its head to let out one small hungry call. YEY - It was a fighter and wanted to live!
NEST:
I created a nest-like structure, which came in handy for another reason - I found out that jackdaws won't poop in their nest, but shuffle to hang their butts over the edge, even when so young! Clever!
FOOD & FLYING:
Diet-wise, we moved on to live mealworms, berries, etc. and I dug in the garden while it watched and helped me pick out the insects and grubs!
It met Charlie (our disabled rescue Crow, found May 2020)
It grew fast in the for four weeks we were blessed to have it in our lives. It kept exploring the area; flying a little further each time.
It did keep coming back for meals, but this morning was the first time it didn't.
Yes, I am worried and I'm praying that it's safe!
FLOWN THE NEST:
You could say that it literally spread it's wings, flown the nest, gone to explore this big wide world, meet a mate, and do what birds do. Be free.
BLESSED:
I'm happy I helped it survive; I feel so blessed to have experienced the rare bond between a human and wild bird/animal.
I wish more people could understand that all living animals are pure beautiful souls. They need to feel at ease with our trust, to be RESPECTED, and not encaged or mistreated in any way.
I fell in love with it in such a short time (the four weeks with was with us) and understand that, if you love something, you set it free to live its best life as nature intended - you give it roots and strength to grow, wings to fly and a safe place in it feels welcome to come back to visit, should it so wish.
I hadn't given it a name but, if I had, it would have been something like Phoenix or a name which means 'pure soul'.