Birds like to sit on the tops of buildings because it feels like a safe and warm place just for them.
Another way to say this is:
- Birds like being up high where it feels quiet and cozy.
- The tops of buildings are like a little bird's home in the sky.
- Birds love to rest in places that feel safe and comfy above everything else.
- Being high up makes birds feel special and protected.
So, you can tell a 6-year-old that birds like the tops of buildings because it feels like their own secret and cozy home way up high!