Another way older children can be placed for adoption is where the birth parents' rights were terminated by a court due to improper parenting or abuse. Although the child may still foster idealized feelings for that failing parent it is not uncommon in these adoptions for there to be no contact between the child and adoptive parent, and the birth parent.
In all adoption searches, it is uncommon to find both the birth mother and father at the same time. A separate search, if desired, can be done afterwards for the father. Since males seldom change their surnames, and the mother might have additional information, it is usually easier than the initial search for the birth mother. In many cases, adoptees are able to do this second search for their birth father by themselves (or they try before paying for assistance).