I was cooking dinner. around 7:30 pm. suddenly i heard a very loud"jet" engine.I live within an hour of ft.Bragg so i'm kinda used to hearing loud planes. but this was different. i rran out the back door onto my deck. a huge square object was over my backyard. it had white and red lights. the animals started pouring out of the swampy area in my backyard. the sound was deafening. i felt panic and disbelief. i was desperately running everything thru my mind of what it could be. but i knew there should be green lights too. port and starboard. there were no green lights. the back if my yard was still dark but i could see bright eye glow as the animals ran out of their wooded area. i realized i was telling but my voice was frowned out. the object then moved on over my field. it turned right, seemed to rise, and then just disappeared. the main thing was that it was square. i couldn't rationalize that or the missing green lights. it came back the next night around same time. but this time it was higher and made no noise. also, there was other aircraft in the sky. the ufo was higher and it didn't stick around. i did run out in field this time and tried to take pictures. the animals were not upset this time.