Another pair from the Natural History Museum. My current technique involves drawing the picture first in yellow pencil and then going over it in a darker one, which I find makes the whole process of drawing a lot easier. I remove the yellow pencil on my computer later, although this has turned out to be a bit of a fiddle.
I liked the way these two were posed together in their case. It looked like one (the bird with the bigger tail?) was asking the other to dance.