Puffin colonies in Maine are commonly found in which locations?

• A. Inland forests
• B. River deltas
• C. Mainland beaches
• D. Islands, protected sanctuaries

Answer: (D)

Puffins breed on offshore islands that offer isolated, predator-free nesting sites and easy access to rich feeding grounds. In Maine, colonies are found on islands that are part of protected sanctuaries, where human disturbance is limited and land predators are minimized. Their nests are burrows or crevices in rocky or grassy island terrain, not on inland forests, river deltas, or mainland beaches, making islands within sanctuaries the typical puffin habitats.