February 26, 2018 – On a recent visit to Carlyle lake in Clinton county, the largest man-made lake in Illinois, I experienced the deafening and somewhat hypnotic sounds of thousands of Snow Geese that seemed to overwhelm the senses. Looking up I observed a seemingly endless vortex of white and dark Snow Geese descending literally out of the clear blue sky. Soon thousands more geese were added to the extraordinary sight amassed before me in a crowded expanse of white and dark morph Snow Geese which included a number of the smaller Ross’s Snow Geese. Suddenly, for no apparent reason, a rolling wave of white lifted off the ice and into the sky in a domino effect like chain reaction in this beautiful expanding upheaval. The sounds from the geese increased in volume and pitch as the mass moved horizontally in a awe inspiring visual display resembling a giant shimmering electric animated sign, only to settle back to the ice and water a short distance away.
Just days before my visit an official count for Snow Geese on the lake was completed showing a total of 90,750. Most certainly a remarkable site to see but in February 2014 the DNR reported an incredible 1.1 million Snow Geese on the lake. Looking out on the lake, on the huge floating sheets of ice, Bald Eagles, both juveniles and adults, could be seen feeding on the white geese. I counted 22 eagles at one time on the ice and in the trees near the Coals Creek access on the south east side of the lake not far from a large concentration of geese. On the far south side of the lake, east of the dam along the spillway, I witnessed 12 eagles on the ice with a few of them eating on the carcasses of Snow Geese. In the surrounding agricultural fields the Snow Goose hunter’s strategically placed decoys could be seen. The spring light goose conservation hunt, which began February 1st and ends March 31st in the this part of the State was in full swing. The extended spring hunt is part of the conservation efforts to reduce the numbers of Snow Geese and there are no daily bag limits on the white, blue, and Ross’s.
The Mid-Continent Snow Goose populations have exploded over the years and the Subarctic and Arctic nesting sites are being destroyed by the overpopulation of these light geese which is having a measurable and devastating impact on other species that nest in the Arctic. The habitat in the Arctic is being overgrazed by the Snow Geese which destroys the plants on the tundra when the geese dig up and eat the roots which eventually turns the tundra into an inhospitable ecosystem of mud. The impact of the geese could take decades to recover from, with some areas that may never recover after the destroyed grasslands become salty mudflats.
There is some cautious optimism that the goose population is stabilizing and some areas around Hudson Bay may be showing signs of improvement. Humans extreme affects on nature are apparent and we have driven many species to the edge of extinction, some gone forever. It is a learning experiment of balance, science and conscience as we try to backpedal our impact on other life forms we share the planet with. It is not an easy task to understand the equilibrium of conservation and the Snow Geese appear to be a great example of the importance of science and the dedication to understanding.