Our bird houses have a  Hawk Eye cameras with built in microphones mounted inside of them. Our cameras are IR LED night vison infared cameras.  These Hawk Eye night vision cameras come with color video and a microphone. This makes it possible to watch babies hatch and hear birds chirpping as they grow up inside the bird house.  You can have a front row seat by connecting a 100' cable to your TV or computer.  Children can learn to observe nature in the birdhouse nest.