While watching the sunrise, I observed a long cylinder shaped item with four ball shaped items extended outward, it was located on the No. West direction of Tucson, AZ.. As the Sun came up the object got brighter then just vanished. The object gave off a slight hum, that's what got my attention to it. I observed it for over a minute, just hovering about 2,500 ft. above the ground, then it started to brighten up and then it just vanished, like it either cloaked itself or sped off. Another thing that happened was, all the birds were flying around in a frenzy, away from the object. Birds usually don't fly around in the early morn before the Sun rises.