Atlantic Puffins nest in burrows tucked between large boulders, where predators have trouble reaching them. They raise one puffling (as puffin chicks are called) each year. As sea level around Seal Island rises, Audubon is using decoys to try to encourage the birds to nest in burrows at higher elevations to avoid flooding in lower-elevation burrows.
The cam is monitored by volunteers at Hog Island Audubon Camp, and hosted online by Explore.org.