Watched a blinking light change colors and move erratically

I observed the object from my bathroom. It was just sitting there blinking green. It  then moved very fast to the right and stopped on a dime. It then started to blink red. It changed back to green then changed between the 2 colors. There was no sound. It moved towards the south. I took one video from my upstairs, through a screen window. I then ran downstairs and outside to get a better view. I took another short video as it left. I thought it was over so went back upstairs. As I looked out the window again it was back. I ran back down to get another video of 50 seconds. It disappeared again , then I heard helicopters but could not see them as it was cloudy out.