In fact, many animal live streams are done with no audio at all.
You never know when it might rain or worse, when the animal discovers your hidden camera and decides to eat it.
Unfortunately, IP cameras are generally restrictive in what encoders will work with them.
The Pro version of Wirecast is one example of an encoder that will work with an IP camera setup.
More instructions on embedding can be found on this blog. But do make sure that the main stars of the show are ready for the camera.
One of our broadcasters had a problem with an animal when it decided to go to the bathroom in the middle of the broadcast.