I noticed so much more about the yellow warbler as I drew it! I didn't know it that it had a kind of charcoal-smudged cape with distinctive feathered epaulets. I was also struck by the distinctive black edging on the wing. To draw it using pencil was challenging, as I tried to make the grey features different from the reddish-brown features. I also wanted to represent the fluffiness of some of the feathers vs. the sharpness of the wings.