What is the cause and purpose that some birds have red eyes, such as bird hawks, herons, some ground birds and deep divers? - Quora
![Blue Bird With Feather Head And Red Eyes Stock Photo, Picture And Royalty Free Image. Image 72239869. Blue Bird With Feather Head And Red Eyes Stock Photo, Picture And Royalty Free Image. Image 72239869.](https://previews.123rf.com/images/anjokan/anjokan1702/anjokan170200189/72239869-blue-bird-with-feather-head-and-red-eyes.jpg)
Blue Bird With Feather Head And Red Eyes Stock Photo, Picture And Royalty Free Image. Image 72239869.
![I noticed a bird around my house that was black in colour, had a wheat coloured beak, and bright red eyes. It was the size of a crow. What bird is it? - I noticed a bird around my house that was black in colour, had a wheat coloured beak, and bright red eyes. It was the size of a crow. What bird is it? -](https://qph.cf2.quoracdn.net/main-qimg-5918e2eba6c9cab131c96f30389cd3fe.webp)
I noticed a bird around my house that was black in colour, had a wheat coloured beak, and bright red eyes. It was the size of a crow. What bird is it? -
![Black Shouldered Kite Bird With Striking Red Eyes Stock Photo, Picture And Royalty Free Image. Image 6195037. Black Shouldered Kite Bird With Striking Red Eyes Stock Photo, Picture And Royalty Free Image. Image 6195037.](https://previews.123rf.com/images/fouroaks/fouroaks1001/fouroaks100100030/6195037-black-shouldered-kite-bird-with-striking-red-eyes.jpg)