Watch on your TV
The Cast button works in Google Chrome (on a computer or an Android phone): open this page there and press Cast to TV. This browser cannot start a Chromecast.
For the best picture of a wildlife camera, open its stream in the YouTube app and press Cast there: Open this camera on YouTube
Casting
The buttons and channels here now work the TV; it follows within a few seconds. You can also close this page: the TV plays on.