This took longer to draw, not because I lavished extra detail on it, but because I screwed up. I sized the reference photo down way too small, so I ended up with a micro-sketch of an extremely tiny towhee. It did not scale up gracefully, being made of pixels and all, so I basically drew a proper-sized one over top of it. I didn’t really notice my goof-up until I had pretty much finished the original drawing.
But now I’ll know for next time!