One day I was outside in my garden and i saw a wild bird around ( in this case Blackbird ) . I tried to get closer every day but it took me over 2 and half months to befriend him. His name is "HEY MAN" and he is coming back to my garden every day in the morning and evenings.
Steps:
Be a patient
it will take a long time to get there
move slowly
you need 10-15 min every day
start feeding from 10-15 m until a wild bird comes closer to you
it may take 3-4 weeks
next step is to get a wild bird closer than 5 meters
keep feeding and start to get closer up to 1 meter
when you get closer than 1 meter then is just 2 weeks away to the final
start feeding bird from your hand
never try to catch a bird otherwise you can start again and again

ok. so good luck and let me know if you have any success.

Thanks for watching

DDNZ