I know what you mean! It’s always a bit tricky to know how to start. I found an old, mostly blank notebook, “recycled” it and then, not knowing where to begin, I started drawing a picture in – basically doodling. Mine is much more of a “scrapbook” approach with everything rolled in one, at least for the time being. To each their own, but I find drawing something – even if it’s just a doodle, helps me focus on it and then the ideas and thoughts start flowing.
Hope that helps.
ps. Re the magpies, there’s quite a lot of interesting folklore surrounding magpies and the folk-augury connected to them too.