Rabbit Poo – How to Use?

Rabbit Poo – How to Use?

So I have a couple rabbits and want to use their manure in my yard but I'm not sure how. We have a fair amount of lawn, some garden boxes which have yet to be planted, a couple fruit trees and some roses. They use a litterbox, so it's mixed with their pee and therefore probably higher in ammonia than dry pellets. I've read it should be "aged" before applying to the garden, does this mean I have to compost it (something I don't know how to do), or do I just have to let it sit out for awhile? Any hints are appreciated!
A new visitor in my garden!

A new visitor in my garden!

Strange growth on Norfolk Pine

Strange growth on Norfolk Pine

Cactus ID

Cactus ID

The Garden Bench – a very photo heavy post

The Garden Bench – a very photo heavy post

Another angle of the mystery bug

Another angle of the mystery bug

Grandmother’s Iris

Grandmother’s Iris