A close neighbor of ours was investigating the same type of system for his herd ( 300 cows) and asked a local Hutterite Brethren colony what they used as they are usually out on the cutting edge of new technology, their answer..." we tried the best we could buy and ended up going back to regular personnel visits, much better surveillance" .
They claimed the camera angle and lighting was always bad for what they wanted to see and had to attend anyways.
Always seems like the human is better than technology!
Sorry if my previous note wasn't clear
@6.5 Fan. When I said 100 yards for WiFi, I meant using a home router. The point to point WiFi bridge between my house and my barn is good for something like 24km. It is extremely directional. I dont link devices to it - just the bridge. On the barn end of the bridge I have another WiFi access point that provides service inside the barn and the immediate vicinity. This gives me seamless use of my home network around my whole farm for printing, file serving, and other services like security.
I like the battery powered cameras because I don't pay any fees and can put them where ever I need them without worrying about power or internet. The rechargeable batteries last over a month and only take an hour to charge.
I can also set alerts for movement and they can recognize people vs animals and then I can check them from my phone.
When my dad was dying of cancer, I put one in his room so I could always check on him to help him when needed. It was like a high powered baby monitor.
I also used one to watch for racoons raiding my purple Martin house.
You can also use your phone to zoom in on specific areas of interest and they include infrared for night vision.
If I could get a neighbour to check things for me 24/7, I wouldn't have cameras.