Bird hopping backwards

It was a crisp bright afternoon, a good time to watch birds enjoying the bounty of black oil sunflower seeds filling a tray hanging in a tree. I watched a red-bellied woodpecker hop into the tray, select a seed, and hop backwards down a slanted branch to get to a place to enjoy his treat. Seed devoured, the woodpecker hopped back to the tray of seeds, took another, hopped backwards once again.

What a beautiful bird! He has a red head, and an intricate black and white pattern on his back.