Date: 08/23/2007

Number: 1

Thursday, August 23 Thickson's Woods Monarchs

As happened last August, monarch butterflies are
congregating in sheltered areas in the centre of the
woods, particularly in a clearing where a large silver
poplar blew down two years ago. Numbers have reached
several thousand. Last year at the peak estimates
placed the numbers at perhaps 100,000. The
butterflies are very sensitive to any sounds, so
please be considerate. If you move slowly and
silently, you will have a much more rewarding
experience and the butterflies will be less
disturbed.. Look for twigs and branches covered with
what look to be dead leaves.

Contributed by Don Davis

Whitby, ON

Latitude: 43.9 Longitude: -78.9

Observed by: Donald A.
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