Dark, Cold Object Found in Entrance Way

It was late that dreary afternoon when I finally got home. I walked into my  sheltered entrance and something caught my eye!  It was a dark, bluish, ballish sort of thing. As I crept closer to see what it possibly could be, it began to move!  I jumped back, and when it had settled down, it revealed a beak and what looked like tail feathers!  But what was it doing in my entrance way?  There are many warmer doorways--just ask a homeless person. 

Then it dawned on me; the answer was clear.  My entrance way was color coordinated.

Pigeon Disturbed in a Doorway