Irene Pepperberg, an internationally known animal behaviorist, will present "In Search of King Solomon's Ring: Studies on the Cognitive and Communicative Abilities of Grey Parrots," on Tuesday, April 23, at 7:30 p.m. in Muenzinger Psychology, room E050. The talk, which is free and open to the public, will focus on Pepperberg's nearly 25 years of research on the intelligence of Grey parrots.