Hummingbird nest

My neighbor trimmed some branches out of her walnut tree in the front yard.  It's pretty entertaining to watch her.  She puts her truck under the tree, then puts a ladder in the back of the truck.  Then she gets up on the ladder and trims away.  She trimmed one branch and realized there was a small nest on it.  Inside the nest were two baby hummingbirds.  The nest was so tiny!  She felt so bad.  Once she was done trimming the branches, she used some duct tape and stuck it back in the tree.  She checked on it a week later and the babies had left the nest.