I love the way this one is perched on the branch.
Mountain Chickadees are found in the United States. They are around 11 - 14 cm in length and weigh about 11 grams.
Mountain Chickadee measures 2.5 x 3.5 inches and is painted on 300gsm smooth Arches watercolour paper.
Many thanks to Andy Reago & Chrissy McClarren for the reference photo.