What type of suet should he choose? This Carolina wren is choosing a peanut based suet. Their study suggests that Carolina Wrens are directly limited by food supply, and that bird feeders play a crucial role when other food is in short supply. Even though they found that the city parks had the greatest density and highest overall temperature, the wrens tended to abandon the site completely if there were no feeders available. The temperature was also taken into account and recorded hourly. They set up sites in three different types of habitat to test this: city parks, residential areas, and rural areas. Researches set up an experiment to determine whether supplemental food played an important role in the winter survival of Carolina Wrens in their Northern range. In 2011, a study done in Michigan sought out to find the answer. However, is it possible that their winter survival rate can be positively affected by supplemental food? Prolonged periods of sub-freezing temperatures, high competition, and shortages of food all lower the probability of these birds to make it through winter. Northern, non-migratory birds must face tough winters every year.
One possibility is that its range is limited by temperature.
Photo by Bob Vuxinic from Crossville, TN.
However, is that because of the cold, or because there isn’t enough food in winter? Peanuts are a good choice if you want to attract Carolina Wrens. Thus, their northern range seems to be limited by harsh winter. When winters are rough and snowfalls abundant, these birds may struggle to survive. Nonetheless, they visit feeders Carolina Wrens are tiny, active birds that are constantly in search of food to satisfy their high metabolic rate. Their diet consists mostly of insects with only about five percent being seeds and vegetable matter. Photo by Laura Frazier from Middleway, WV.Ĭarolina Wrens (Thryothorus ludovicianus) are small, enthusiastic insectivores that people hear more often than see. If you see one visiting you feeder in winter, you might be helping it more than you think. Thanks to Facundo Fernandez-Duque for this excellent student blog post about Carolina Wrens and their love of feeders in winter. Blog One peanut can go a long way for a Carolina Wren
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