Goats will eat almost any weed, won't they!
I like the chop n drop method as well haha.
I guess raspberry (Rubus) is also bramble! I grow both. Wow so you have green leaves on yours already? My raspberry does not, but maybe because I planted it in a colder micro climate in the garden.

I didn't check the BlackBerry yet. As You said, not much going on right now but a perfect time to prune. Especially for fruit trees.
Would you happen to know why my blackberries turn out incomplete? Many of the tiny individual florets fail. My colleague suggested that maybe they weren't getting pollinated, but I'm not convinced.