Great morning at Good Harbor Beach with Dave Rimmer and his intern Mike Galli along with Gloucester’s DPW Joe Lucido installing the wire exclosure at #3. The guys were in an out hammering in the exclosure and after completing, before they had walked thirty feet, Dad PiPl was back on the nest!
One of the chief risks of installing an exclosure is the birds may reject the nest after placing the exclosure. Dave shared that in all his years of experience (and he has been helping Piping Plovers on the North Shore since 1986 when they were first declared threatened) only once did the nesting birds reject the exclosure. He waited forty five minutes for the birds to return and then removed the exclosure.
For friends who may not recall what an exclosure is – an exclosure is a six foot in diameter wire cage placed over a nest and held securely with metal stakes. The openings in the exclosure are large enough to allow PiPl sized birds to go in and out of the cage, but small enough to prevent most small mammals and larger birds such as crows, gulls, hawks, and owls from entering and eating the eggs. Exclosures don’t work in all circumstances but are very practical at busy town beaches such as ours. Bear in mind that over the course of four years, 15 eggs have been laid at Good Harbor Beach by one Piping Plover pair. All fifteen eggs survived and hatched because of the use of an exclosure.Mom sitting on the nest prior to the exclosure installation