Members and friends of Elm Bank are invited to join Patty O’Neill, a veteran bird walk leader, who will lead a walk through the gardens, along the Charles River and through the 75 woodland acres which are behind the Putnam Greenhouses. Binoculars, proper footwear, bug spray and water are necessities. Active in the South Shore Birding Club, Patti manages several Mass. Audubon census tracts, and since retirement as an Attorney, has traveled internationally is support of her hobby.