Which bird has high IQ?

Highly Intelligent Birds

The corvid family, which includes ravens, crows, jays, and magpies, along with psittacine species such as parrots, macaws, and cockatoos, are frequently regarded as the most intellectually advanced birds. They rank among the smartest animals overall. Furthermore, pigeons, finches, domestic chickens, and various birds of prey have also been prominent subjects in studies exploring animal intelligence.