The mother blackbird defends its territory from a cat that attacked its nest earlier this year and destroyed one egg. The bird definitely remembers the cat and the cat seems to understand what is going on. After the cat running away another cat shows up at the same place and get offended by the bird. Finally the bird celebrates the victory and slowly calms down.

The situation got me nervous. I thought that the cat has eaten the baby bird but afterwards I looked around for any signs of murder and did not find anything to point to that. So I believe the chick was not hurt at this scene.