Which bird pokes holes in other bird's eggs to make sure there's enough food for them?

Keep practicing — related questions

• Which bird takes the possession of the nest of some other bird to lay its eggs?
• The bird who lays its eggs in a crow's nest is
• Choose the odd one.
• Which bird's egg is the largest
• Which bird eats almost anything, including fruit?
• Which bird eats almost anything, including fruit?
• Which of the following birds makes nest in a hole of a tree trunk?
• Which bird lays only one egg in two years?