What is the benefit of living on Island A chinstrap penguins

Living on island enables chinstrap penguins to get their meal easily and enjoy diving.

Explanation:

Chinstrap penguins are the abundant penguins. They have a narrow black band under their head. They are found many islands. Island is surrounded by water from all sides. These penguins are carnivorous who feed on other fish, crabs, etc. Penguins can easily find their meal on the islands. The chinstrap penguins enjoy diving.

That is why they form their colonies near water bodies mainly islands. Their feathers are tightly packed which makes them waterproof and it protects them from winter.