Lt Colonel Bok Bok (my roo) crows a lot in the morning. BUT my blind hen (Blind Tiny) Boks LOUD when the sun goes down. I'm going to try to get video of it one night. For the last couple of months she's started boking REALLY loud as the sun goes down. She lays her egg in the morning and doesn't make a sound, even though the other hens bok after they lay. She only boks at sun down. We noticed a while ago that she can see a bit of light and nothing else. She would look up at the sun and she recognizes a light from a flash light at night. I'm going to watch out for her boking at night a post a video soon. I love her, she's so amazing. I never thought I'd be so attached to a chicken but she's been my heart since the day she came into my life. Here's some pics: Tiny's house, blind chicken safe: Older video of Blind Tiny: http://s177.photobucket.com/albums/w236/southern28chick/?action=view¤t=MOV01011.flv NOTE: Blind tiny was born blind. https://www.backyardchickens.com/forum/viewtopic.php?id=5288 Do a search for Blind Tiny to see all her threads.