I have recently become quite taken with Common Eiders. Here is my attempt at an illustration of them! The head shape was referenced from 'Collins Birds: A Complete Guide to British and European Species'.
Regarding the sepia tones and ripply lines: I had to crank up the contrast because the page is still in my sketchbook and rather too much light came in through the not-quite-closed lid. It's not actually sepia, but I like the effect. : D The lines are, I fear, a result of all the smudging and blending I did.
Regarding my clunky, inelegant digital signature: the scanner didn't catch my refined, pretty pencil signature!