including the piping plover, cerulean warbler, rusty blackbird and saltmarsh sharp-tailed sparrow. Waterfowl and wading birds live at Presque Isle year round. Four species of gull and three species of tern can be seen at Gull Point during the summer months. The majority of collection during the annual Christmas Bird Count, which has been held in Erie County since 1956, is garnered from observations made by volunteers within the park. Many different species of plants and animals can also be found at Presque Isle State Park due to the wide variety of ecological zones. Gull Point Natural Area Human beings have played a role in the ecology of Presque Isle since at least the Erielhonan. The natural drift of sand is hindered or stopped by breakwaters, permanent structures, and roads. Roads also do not absorb rainwater, causing erosion, and break up natural habitats. Excavations such as those to make the waterworks basins or the marina have destroyed habitats, but yearly artificial replenishment with sand helps to create new ones. One area within the park is closed to all public use from April to November to minimize the impact of humans: it is the easternmost part of the park, Gull Point. Gull Point at Presque Isle State Park has been set aside as a Pennsylvania "State Park Natural Area". These areas provide locations for scientific observation of natural systems; they protect examples of natural interest and beauty as well as examples of unique and typical animal and plant habitats. Gull Point covers , of which form the Natural Area and are closed to park visitors during the height of the bird migrations. The natural area is a safe haven and resting spot for migrating and nesting birds. Many of the species of birds that rest at Gull Point are not seen anywhere else in Pennsylvania. Presque Isle lies on the Atlantic Flyway, a major migratory path, and some of these birds migrate from as far north as the Arctic Circle to South America. They pass through in November on their long flights south and return in April on their flights north. Erosion and deposition of sand, which has formed Gull Point, continues to change it. From May 1991 to October 2006, Gull Point lost a total of , and if this trend continues, it may become an island. After the breakwaters were constructed in 1992, less sand was added to replenish