In Matter of Shakim Ravon B. (257 AD2d 547) an abandonment case, the First Department again relieved the agency of the obligation to track down an incarcerated father. "There is no merit to respondent's argument that the agency, having been advised by his sister during the abandonment period, if not before, of his whereabouts in prison, was obligated to contact him and initiate efforts to encourage his parental relationship with his child." (Shakim Ravon B., supra at 548.)