OK. How far from your house is the barn’s foaling stall?
You may be looking at a complete stand alone camera, maybe an outside antenna at the barn, and receiver (monitor) system in your house. Do you have electricity at the barn or will you need a battery powered camera?
Though I use Starlink, here is my experience. The antenna dish needs to be in a spot with a clear view of a segment of the sky. The Starlink app you can install on your phone lets you check that out. You can use the app without being a subscriber to scan the sky and see if you have a good spot to place the dish. The dish connects with a cable to a Starlink wireless router, and that router is designed to be indoors, not outdoors like the antenna. The wireless area coverage is limited. My barn is 250 feet from my house. With the Starlink wireless router in the barn I cannot get its signal in my house. However there is a workaround. Buy the optional Starlink ethernet outlet to go with the router. You can then run an ethernet cable from barn to house. There are also other ways to try to extend the coverage. Since your original question is about foaling stall monitoring, setting up a Starlink system just for that will probably be more than you care to do.
So we are back to a totally stand alone camera-remote monitoring setup. Basically something akin to a wireless trailer monitor camera, but with range to carry the signal from your barn to your house, not just from a horse trailer to the truck. So, what is the distance involved as a starter?