I wasn't trying to discourage you from learning about imprinting raptors. Just trying to parlay that there are several entire schools of thought on the subject. It really can't be described in a post here but people have tried.

Imprinting any raptor takes knowledge and honestly the only way to get it is to imprint a bird. Read all that you can, talk to as many folks as you can who have done it successfully and be prepared to modify your methods nearly daily. Most who go down this road ruin a couple birds before you learn what not to do unfortunately. These are just the facts. Small mistakes in the rearing process with young birds become profound defects in the bird in short order if not corrected. Experience comes into play here to notice a problem and correct it before it becomes an issue later. I wish I could say there was a definitive method but there just isn't.