September 27, 2009:
Here's a backward glance at what we missed in early September and a look ahead to October. At this time of year we can expect to see:
- The nighthawks left by early September. Chimney swifts are gone by early October.
- Warblers and thrushes pass through in September. Look for duck migration in October.
- Watch for an increase in the number of crows and starlings.
- The most numerous species at hawk watches changes from broad-winged hawks in September to sharp-shins and red-tails in October.
- Asters and goldenrod are still in bloom. These asters in my back yard don't fully bloom until October 1.
- "Hitch hiker" seeds are everywhere. Burdock, beggar tickseed and tick trefoil grab onto pants and socks.
- In September, even before the trees and shrubs begin to change color, they lose some leaves and the canopy thins out.
- Watch for maximum fall color around Columbus Day.
(photo of asters in my backyard ... blurry, but you get the idea.)