The Woodcock from the original 'Barnyard Series' farthing was resurrected in the decimal series on the much larger 50d coin.
This appears to be a 7-sided coin, but the "sides" are actually curved around a radius measured from the opposite point. This means the coin will roll easily. (I tried it. It really does roll nicely.)
All coin images in Daniel's Coin Zoo are from my personal collection. I collect, research, and personally photograph every coin displayed on this site. PLEASE do not take my images without permission. If you would like to use any coin image you see, just ask me. Thank you.