Task: Question Answering
Input (English): Process:  -A bird lays eggs in a nest -The parent(s) incubate the eggs -The eggs hatch -The mother (and sometimes the father) bird take care of the baby birds -The baby birds grow up and get their flight feathers -The young birds learn to fly and leave the nest -The adult birds find mates and mate.
 Question: What is the effect of if birds have to migrate on more birds.?
Output (English): against