What to do with blackbird eggs

A blackbird made a nest in our garden. The mother blackbird was removed from the nest overnight by a predator, leaving 5 eggs. 

After seeking advice from a wildlife rehab facebook group. I took the eggs to someone who has an incubator to hatch and look after them. 

I am not sure this was the right thing to do in hindsight.

Can anyone advise? (for future reference)