What is grandpa's answer to making a bird's nest?

Grandpa made a nest to build more trees.

Excerpts from the original text:

One day, grandpa pushed open the door, looked out and said, "Alas, I wish there was a forest in front of my house!" " "Grandpa began to plant trees. However, he is too old to plant nine trees. He can't plant any more.

Grandpa said, "Although I only planted nine trees, I still hope to see a forest. I must find a way to plant more trees. " Grandpa found all the boards in the house and nailed them into nine nests. Then, put the bird's nest on every tree.

The slogan of protecting birds:

Birds are natural enemies of pests and friends of human beings.

2. It is a human virtue to love and protect birds.

3. Take care of birds and protect our home. Pay attention to migratory birds and protect their homes.

4. Protect birds and add color to the environment.

The whole society comes to protect birds and wild animals.

6. It is glorious to protect birds, but shameful to shoot them.

7. Protecting the habitat of birds means protecting our living environment.