Baby bunnies in my backyard

Throughout the winter, we would always find fresh paw marks in the snow in our backyard which was a sure sign of a rabbit roaming around. Occasionally, we would encounter a rabbit dashing away when we opened the patio door. Last week however, the rabbit ran across the backyard upon hearing us but stopped half-way through looking back. It was then we found out that there was a litter of baby bunnies in a burrow adjoining the patio wall.
On the second day, we saw three bunnies inside the small burrow. Next day evening, there were seven of them outside, still huddled together. They were licking and grooming each other but stayed still once they heard a sound. After a while, mama rabbit came and fed them. Shortly after, all seven little bunnies left their nest hopping away in different directions.