I live in a semi-rural area in Germany, close to a park which trains go through every 20 minutes.
Today, I saw something that left me perplexed.
There is a large population of birds that look like crows or ravens, yet fatter. They seem to be quite social and move around in large groups. Today, I spotted one carefully laying sticks from a nearby tree on the train track while the others seemed to spectate.
What exactly was that bird doing? Is this common? Did it have a purpose, or was it just coincidental?