@Rose
Hi, thanks, yes, all pencil! I think I mostly used an HB, 2B, and a 5B, and then I used a 0.5 mechanical pencil around the tiny feet to get finer lines and be more exact.
1. I wanted to be happy with the contour and relative proportions of the bird before I started rendering the details, which is usually my favorite part of drawing. It was challenging to be patient and focus on the posture of the bird.
2. I became familiar with the anatomy of wing feather layers on the bird, which I otherwise would be unaware of. I also wouldn't have noticed the lichen on the branch until I had to decide whether to try drawing it or not! All components of ecosystems are important, and while journaling you have to decide what is relevant to the story they're trying to tell.