Parse string to tree structure (solved)

[grindstone]

But I haven't seen the birds much the last days.

Maybe they're busy with breeding.

BTW: The couple of Great Ttimice in my letterbox are breeding, too now.

[badidea]

But I haven't seen the birds much the last days.

Maybe they're busy with breeding.

BTW: The couple of Great Ttimice in my letterbox are breeding, too now.

Yes, could be the case. I remember from chicken that when they are breeding, they go into full lock-down mode with 3 weeks of voluntary social distancing and only leave the nest for essential business like drop a huge dropping :-)