I seen space craft ,the bottom ,look like squares all across the ,no sound, no lights, I drew sketch of it ,street lite reveal it enou

Look to be curved shape, at least 30 feet long, about 16 feet wide ,it was approximately 250 feet above the ground, it cleared the trees ,once it passed over the trees ,it made 45 degree turn, it was going north then turned north west ,once it turned I lost sight because the streetlight wasn't reflecting on it anymore, But the bottom was very clear , black lines ,rectangular tiles or bricks. No sound or lights. When I walk outside I heard geese ,that's when l looked up the craft was right above me ,it stun me ,then I study it ,color of tiles and limited light ,greenst tint ,being dark couldn't be 100 percent on color, I had no view of the top just the bottom. It looked very clean.too