This branch fell from some strong wings and i noticed these hard pebble like dots, check out the photos. They look like coming from the inside the branch as per 2nd image. Any idea what it is?
https://files.ozbargain.com.au/upload/34092/94256/acfe4ace-e…
https://files.ozbargain.com.au/upload/34092/94255/2071ba01-c…
Probably an insect borer of some kind and the balls are the poo that comes out the other end. That might be why the branch fell also (weakened from being eaten).
If you can tell us what the species of tree is someone might have the knowledge of which insects tend to attack that species