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We are in a bit of a heat wave with +1 °C. Despite this it is snowing. Big wet heavy snow flakes are slowly descending on the landscape. Although it is picturesque it makes it wet and soggy walking on the trails through the forest. It is a nice change from the biting cold and for the first time in a long time one does not have to bundle up when heading into the forest. Birding is definitely more enjoyable and the birds seem to be more active as well. Some birds, like chickadees, actually lower their body temperature in the winter. This reduces the gradient between the internal body temperature and the external temperature. This is the same as keeping your house at a cooler temperature to reduce your heating bill. Both responses reduce the amount of energy necessary to stay warm. With milder temperatures there would not be a need to conserve energy by lowering the body temperature and more energy could be spend on other things, say like increasing activity levels.
May the curiosity be with you. This is from “The Birds are Calling” blog (www.thebirdsarecalling.com). Copyright Mario Pineda.