This free walk will include visits to Leverett, Willow, and Ward’s Ponds in Olmsted Park as well as a portion of Jamaica Pond. Participants should bring a field guide and binoculars and wear boots or shoes they don’t mind getting muddy.  No advance registration is required. The walk is open to the public. Co-sponsored by Brookline Bird Club, the Brookline GreenSpace Alliance, and the Emerald Necklace Bird Club. For more information, email Brookline Bird Club walk leader Bob Mayer at rgmayer@comcast.net or call Olmsted National Historic Site at 617-566-1689, extension 216 Tuesday through Saturday.