Registration with the leader is required.We will meet at Thornhill parking lot, P21 and explore the area. We are looking for winter resident birds and hopefully some migrants from the north. New birders are welcome to join.   Arboretum members are free. There is a charge for nonmembers. Please contact leaders for possible discount. Leader: Mike and Karen Warner, mwarner2543@gmail.com, (630) 640-2450