Answer:
A nutcracker up in a tree
I have a very long neck and eat leaves from tall trees. What am I?
I'm a mammal that can fly and I sleep hanging upside down. What am I?
I have a shell and move very slowly but I don't live in the sea. What am I?
I am black and white with a fishy diet. I cannot fly but I'm an excellent swimmer. What am I?
I love spinach.