Editor of science news from the Year of the Great Tit Marko Mägi, email@example.com , bird ecology researcher at University of Tartu
Photo Uku Paal
Cities attract birds and other animals particularly in winter because the heat leaking from buildings warms the environment and helps animals to save energy. In addition many bird species find easy ”mouthfuls” on these islands of warmth from food waste left by careless humans but also from food tables meant for birds. The concentration of great tits in cities, already at the autumn migration and particularly abundantly in the winter season, is confirmed by many scientific observations. In northern Finland and Sweden great tits manage to survive the winter only thanks to human activities – the birds gather in communities where they spend the whole long dark winter and only leave from there for the breeding areas when spring arrives.