[shack living]

Interested to know everyones thoughts on a good setup for keeping an eye on my cows. Our property is a very steep hill (unaccessable by vehicle) and I was thinking it would be handy to use a telescope to view them from the bottom (distance would be between 300m and 1.5km). I am wanting to see them up close to see they are okay and not having problems calving etc. I have a old set of binoculars, but they are pretty much useless, not nearly enough detail or magnification.