That would explain why @BY Bob 's chickens would wake up and eat in the dark at midnight.
If there is a bright LED on it maybe that is why they wake up as well.
I tried to get Abigail to react to a infrared light but she didn't.
My cameras are off unless I turn them on. Hattie is already eating or drinking when I turn them on to check. They camera infrared is not lighting the night for them.
 
I don't think @BY Bob 's cameras are on 24/7, and he has a better idea about this, but I think the one hen who needs to eat gets up regardless. Maybe with the motion the camera comes on, if it's set to do that, and it helps her. But - mostly, I think she knows where to go, even in the pitch dark. She needs to eat so she's trained herself to do it blindly (blind people do this). But also it's likely there's some light - including IR light - from the moon, unless it's a new moon, and the neighborhood's outside lights and streetlights provide ambient light too.

This is correct and I now owe more SHRA. :he
 
I want the pretty little Hattie 🤗🤗
You mean baby Hattie?

2018-07-24 08.31.09.jpg


Or today's Hattie
20230408_174459.jpg
 
But - you know - they can actually see infrared light so it's likely as bright for them as it looks to us on camera. I'm positive about this. The hens here notice the infrared light when I turn on a camera to check on them, they squint sometimes even, because it really WAS pitch-black prior to my rudely turning on the camera's infrared light.
I think they can see the red light of the camera. Chickens can see ultraviolet light, whose wavelengths are shorter than visible light; I am not sure they can see infrared light - their wavelengths are longer than visible light.

This study says they can see roughly 419 - 570 nm

Ultraviolet light wavelengths run from 100 - 400 nm
Infrared light wavelengths run from 780nm - 1mm
Plant Growth and Light Spectrum - California LightWorks


This article on BYC is much easier reading, but less technical.

If anyone has more info, I would love to know more about their eyesight. The first article is pretty comprehensive in evaluation, but is also pretty technically written. I can follow the gist of it, but there are a few things that I just shrugged my shoulders on.
 
Dakota tried real hard, but she failed.
I was waiting for her to come back to the coop, and she was just pecking around in the dirt next to my chair outside the coop.
I told her “not tonight sweetheart, you have to stay here with the others!”
She seemed to understand my every word, and reluctantly walked into the coop. I knew what she wanted. She knew that I wouldn’t let her. (This ends another broadcast day) :gig
 

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