When the baby robins leave the nest..should i remove it?

It's generally best to leave the nest in place after the baby robins have fledged, as the parents may use it again in the future or it may provide a habitat for other wildlife. If the nest is in a location that poses a safety risk, you can remove it after ensuring it is no longer in use. Always check local wildlife regulations before disturbing any nests, as some birds are protected by law.