Students from Sawgrass Lake Elementary in St. Petersburg flocked to St. Petersburg’s Sunken Gardens on Tuesday to study the park’s flamingos. The flamingo population at the gardens has dwindled over the years, park staff said. The students were tasked with observing the birds to give suggestions on ways to maintain the flamingo population in the future. All students invited to the park made the principal’s list and honor society this semester for good grades. The trip is part of a sweeping effort to help students understand the many ways they can have an impact in their community, principal Jean Charles-Marks said.