Regarding Eiders

As of late, I have become quite taken with Common Eiders. The following is my attempt to capture their spirit and beauty using graphite compound on paper:

The head shape was drawn with the aid of a nice photograph in a volume (from the Collins publishing offices) entitled 'Birds: A Complete Guide to All British and European Species'.

The illustration is not really so sepia-toned as it appears here, but it is in essence the same.