Good question, I'd like to see the replies also. The scoops designed for cleaning horse stalls don't work very well with goat berries. When it comes times to clean stalls I just use a big heavy duty pitchfork and scoop the dirty bedding up in clumps until I see the dirt floor. Then we put fresh pine shavings down.
I assume by paddock, you mean an outdoor area with no bedding. I use a sturdy metal dust pan with the handle bent up at a 90 degree angle, with a 4' broom handle inserted as a scooper, and a small broom to brush the berries in.
A front-end loader or skid-steer. LOL They don't work for the sheds, though, so there I use a 6-tined manure fork, then rake up what is left and use one of those plastic manure forks like the ones used in horse stalls. Anything that falls through is raked out level and left. If you are cleaning a level surface, try an aluminum scoop shovel. It get's everything, holds a lot and, because it's aluminum, it's pretty light-weight.