Out of curiosity...I did the math, hopefully correctly.
650' set in a square/rectangle would be about 26406 sqft?
Divided by 25 is 1056 sqft per bird.
Yeah, pretty cool, right? I started with 300' of the electro-net, it worked out so well, I ended up buying another 350' of it. As I've posted before, I consider getting that fence, one of the best things I've done for my birds.