Finch with shorter beaks increase in number and population of bigger beak finches decreases.
Explanation:
Yes, finches have been greatly affected by abundant rain because in abundant rainfall plants produce an large number and variety of seeds so large amount of food is available for the finches. Due to abundant rainfall, the finches with shorter beaks increase in population. This change greatly helps finches in finding of food so shorter beak finches increase in population due to abundant rainfall.
