Birders, Yesterday, Saturday, I observed a group of about 10 white winged crossbills from my yard on Chestnut Drive in the Forest glade area of east Windsor. The birds were actively feeding on the many spruce trees in the area. Also good numbers of Common Redpoll visiting my feeders this winter, as well as several pine siskins.   Steve Greidanus Windsor, Ontario buteo1@yahoo.com   >From Forest Glade Dr in Windsor, follow Wildwood to Beachdale to Chestnut. The birds were in the 9500 range on Chestnut when I observed them.