Jillian Vogtli, a former Ellicottville resident, member of the U.S. Freestyle Ski Team and 2002 Olympian, will deliver the keynote address at the University at Buffalo's 13th annual National Girls and Women in Sports Day Celebration, to be held from 8-9:30 a.m. Feb. 5 in Alumni Arena on the UB North (Amherst) Campus.