saw a object coming toward our house; Just thought it was a bird until I relized it had no flapping wings..and sun sparkled off it

My husband and I were outside. I noticed a object which I thought was a large bird but when it didn't flap its wings and the sun reflected off it I brought it to attention of my husband, He is prior military, It was moving quite fast no sound at all and gong in the direction of Crane Military depot. We both was concerned they make ammunition and bombs ext. for the military. didn't know if we should follow it or not... It was picking up altitude and speed. My husband grabbed some paper and drew what he saw. It was oblong kind of tilted and shiny. the sun reflected off of it ....