Finding Bird Eyes with the Canon R5, Nikon Z9, and Sony A1

On my expedition to the Ecuadorian Andes, an interesting group of cameras gathered in the thickets of the montane cloud forest: a Canon EOS R5, a Nikon Z9, and a Sony A1. Since it was often the case that all three cameras pointed their lenses at the same bird at the same time, I started to notice differences in how they dealt with each given task. I found that the cameras in question detected birds’ eyes in different – and, to me, surprising – ways.