"Oriental Hornbills Demonstrate Cognitive Skills Matching Those of Primates"

Oriental pied hornbills have demonstrated cognitive skills that rival those of apes, showing an understanding of object permanence comparable to human children. In an experiment, the birds were able to locate a hidden food reward without visual cues, reaching developmental stages comparable to apes. This challenges the notion of "bird brain" and highlights the intelligence of bird species beyond parrots and corvids. The findings, published in Biology Letters, shed light on the remarkable cognitive abilities of Oriental hornbills.