Baby pigeon help!!!!!!?

hello, i went in to the garden early this morning and found a baby pigeon out there. It seems quite alert and flapping its wings alot. i tried to put him on a branch of a tree as his mother and father are around. however the tree he lives in is a big conifer and impossible to get in and find his nest so he was put in one right near it, he didnt move from there, his mon n dad came to him but hours passed and he hadnt gone in to his tree. he can walk and is trying to fly but not there yet. he did try to fly again and fell out the tree he was in so put him in a box for the night so he was safe and warm and going to try again in the morning. but dont know what to do with him. anyone know?