10K views · 428 reactions | What bird is that? In the leadup to this...

This nestling Australian Raven is about to get his morning medications, so we took a quick video to show you his eye colour. Can you see his irises are still blue? They will turn brown once he is an immature or subadult bird, and then completely white once he becomes an adult, at 3 years of age. This pattern of iris colour change is common to all corvids. If you look at a flock of corvids next time you're around one, you might notice that not many of them have brown eyes - this is because immatu