It’s About Time – September 2013
It’s that time of year when the birds are getting restless. Migration is stirring in their bones — hollow bones evolved for long-distance flight. We expect thousands of Vaux’s swifts to roost in the old Agate Hall chimney for a week or so on their way south. Watch for the Audubon Society’s Friday night vigils Sept. 20 and 27 when that happens. The equinox on Sept. 22 comes as the change in day length is at its greatest. After equinox the rate of change decelerates until the change is barely noticeable during the season of longest nights. Continue reading