They also ensure that the parents return to each nest within a certain amount of time or they will remove the exclosure so as not to dissuade them from tending to the eggs. However, this is very rare, and the system works wonderfully. The hardest part is often spotting the nest itself, even with an adult on it! If you are an experienced volunteer you know how difficult it can be to find Piping Plovers when they are stationary on the sand, and it is no different for the experts.
Sean took these photos of the exclosures at Bluff Point, a couple of the birds, and a nest and eggs.
Keep in mind that shots like these can only be obtained when setting up an exclosure with those permitted to do so, as Sean was with CT DEEP. We should always stay very far from the exclosure, staff included. Even if someone was lucky enough not to disturb the birds, going near the nest could lead predators to it with their own tracks and scent. The exclosures work very well but are not entirely foolproof, and nothing more than a visit from an unsuccessful predator can spell doom for the eggs.
Audubon Alliance for Coastal Waterbirds, Audubon Connecticut and the Connecticut Audubon Society partnering to improve conditions for coastal waterbirds in Connecticut.