Nature Fact

Winter life in the cold Season - The short Winter days give birds little time in which to meet their food requirements.  It then becomes vital to conserve as much energy as possible during the long cold over-night vigil.  Small birds are especially vulnerable to heat loss at night and some, such as Wrens and long-tailed Tits, huddle together in groups to share body warmth in a snug recess, such as a tree hole or old nest.