
It would seem a bird walked on the concrete while it was still wet. Wouldn’t the concrete also have stuck to the bird’s feet, hampering it?

It would seem a bird walked on the concrete while it was still wet. Wouldn’t the concrete also have stuck to the bird’s feet, hampering it?
Not enough to cause any problems. Even if it’s on their feet long enough to dry, it’ll be a thin skin of the more liquid components of concrete. Think slightly harder dried mud. It’ll just crack and flake off or rinse off in the rain.