I have a huge 250 gallon stock tank that has evolved from life on a shrimp boat, to life as a koi pond, and now finally, rust holes and all it's a worm bin. It sits in shade under a big mango tree in my backyard. I put in chicken manure (dried) on one end about every 3 months, about 2 gallons. I mix it in with straw, leaves and some green material.
It heats up things on that end for a few days, but along with worms, my bin also has soldier fly larvae, centipedes, roaches, and a myriad of other creatures constantly chewing away. Within a week they're into it, and within a month, it's completely broken down. I also add rabbit manure every couple of weeks, along with lots of different fruit, vegetables and leaves. We even cut up and put huge trunks of traveler palm in there last year to see what would happen. It was completely broken down within a couple of months.
I was putting my stems and fan leaves in there too, but a neighbor with cancer is eating the fan leaves in salad, so now all that goes to the bin isan occasional stem.