The bird was not too difficult - the hard part for me was depicting the lichen, moss and texture on the branch. I think drawing from a photo is easier as it can be enlarged to show detail. But there is nothing quite like being outside in Nature with sketchbook in hand despite the challenges of weather and insects.
I've always been interested in Art and Nature, even as a child I collected stones, bits of moss, interesting rocks, and dried seed pods, pressed wildflowers, even snakeskins that were shed. I kept a scrapbook then. Now, I'm retired, and enjoy keeping a watercolor/pen and ink sketchbook. I've recently learned about
keeping a "perpetual" botanical journal, where you can keep and record different nature items on a weekly basis with a page per week. So for an entire year you could keep your items posted in one book, with a weekly spread on each page, sketching and recording something and marking the date next to it or simply the week at the top of the page.
I think by doing it that way - for me - it wouldn't be overwhelming. Whenever I have committed myself to sketch daily, life gets in the way and it is hard to maintain.