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Fairfax County wildlife experts are urging residents not to feed animals during icy winter weather, warning that human help can spread disease and make wildlife dangerously comfortable around people.
John Burke, natural resources branch manager with the Fairfax County Park Authority, said local animals are adapted to survive current conditions—and often weather that is considerably colder.
Many mammals build fat reserves before winter, much as people might gain weight during the holidays. When food becomes scarce, deer can live on vegetation that may appear unappealing or lacking in nutrition, including twigs and small branches.
Gray squirrels also prepare by hiding food in multiple locations, including places above ground. During cold spells, they conserve energy by becoming less active and may gather together in dens or leafy nests known as dreys for warmth.
Bird feeders are not necessary for birds to survive the winter. Residents who still choose to use them should keep the seed clean and wash the feeders every couple of weeks with a 10% bleach solution, Burke said.
Feeding wildlife is illegal in many places and can create serious problems. Besides helping diseases spread, it can condition animals to approach people, potentially creating unsafe encounters.
Burke said residents concerned about animals outside their homes should simply watch and enjoy them. Wildlife can generally manage the winter without assistance, with more activity expected when spring arrives.