Dobbs Ferry: Christmas Tree Sale. Customers will find a mix of 350 fresh-cut balsams, Fraser firs, wreaths and pine roping. Early Bird Special through Dec. 9: all customers will receive a discount coupon for $5, $10 or $15 off the price of any tree. Tree lighting 4:30-6 p.m. Dec. 9. Trees sold until Christmas. Aldersgate United Methodist Church, 600 Broadway. 914-693-0446.
New Rochelle: Garden Club of New Rochelle Flower Show and meeting. The Club’s monthly meeting, followed by a presentation of a Standard Flower Show and Visiting Nurses baskets; judging at 2 p.m. Open to the public. Free. 2 p.m. Elks Lodge, 19 The Boulevard. 914-632-5411.
Bedford: Animals in Winter. When you are cozy and warm in your home, what are animals doing to keep warm? Why do birds migrate? These are some of the questions we’ll answer as we meet some of our animals and discover what each species does to survive the winter. RSVP by Dec 14. $5. 10:30 a.m. Westmoreland Sanctuary, 260 Chestnut Ridge Road. 914-666-8448.
Yorktown: Annual Christmas Bird Count. Celebrate nature this holiday season by helping Teatown educators in this important census to count wintering birds. The information gathered is compiled and sent to National Audubon. Free. 8 a.m. Teatown Lake Reservation Nature Center, 1600 Spring Valley Road. 914-762-2912, Ext. 110.
Bronx: Bar Car Nights at the Holiday Train Show. On these special nights for grown-ups at the Holiday Train Show, leisurely view this exhibition while sipping a complimentary signature cocktail created exclusively for Bar Car Nights. A cash bar will offer additional beverages and snacks for sale. Select from 7 or 7:30 p.m. entrance time. For tickets, visit http://www.nybg.org/visit/tickets.php. 7-9 p.m. Also Dec. 22. New York Botanical Garden, 2900 Southern Boulevard. 718-817-8700.
Pocantico Hills: Grow Your Own: Holiday Cocktails at Winter Market. Treat your guests or surprise a host with a drink that reflects the season. In this free demo at the Winter Farm Market, learn how to turn farm-based ingredients into holiday cocktails sure to warm your holiday table. This is a demonstration class that will be on-going throughout the Winter Market hours. Feel free to drop in at any time. 1-4 p.m. Stone Barns Center for Food & Agriculture, 630 Bedford Road. 914-366-6200.
Bedford: Feed the Birds. While some birds have left for a warmer climate, our resident winter birds are happily copping with the cold. Make a birdseed bagel or pine cone feeder for your backyard birds. String popcorn and berries to decorate our bird feeding station. RSVP by Dec. 21. $5. 10 a.m. Westmoreland Sanctuary, 260 Chestnut Ridge Road. 914-666-8448.
Yorktown: Decorate a Tree for Wildlife. Celebrate nature’s gift to us. Join us for a Teatown holiday tradition of decorating a tree with goodies for the birds, squirrels and other wildlife. $5 per person. 11 a.m.-12:30 p.m. Teatown Lake Reservation Nature Center, 1600 Spring Valley Road. 914-762-2912, Ext. 110.
Wantagh, N.Y.: Sunrise and Birding at Jones Beach, N.Y. Meet Della and Alan Wells of Rockland Audubon Society at the commuter parking lot on Route 303 North in West Nyack at 5:45 a.m. See the first sunrise of 2013. Free. 5:45 a.m. Jones Beach, Ocean Parkway. 845-942-5751.
Bronx: Wave Hill’s Winter Workspace. Glyndor Gallery is transformed into a space for artists to create new work and develop ongoing projects. Twelve artists, representing an array of artistic practices, will be in residence over two, six-week sessions, from early January until late March. Each of the two sessions include an Open Studio Sunday, and a series of artist-led workshops for visitors. At these events, artists engage with the public, giving visitors the opportunity to learn about the creative process behind each studio art project and hands-on workshop. Session 1: Jan 2-Feb. 11; Session 2: Feb. 13-March 25. Artist-led Workshops and Open Studio Sundays offer visitors an opportunity to enjoy an insider’s view of Wave Hill’s Winter Workspace on Feb. 10 and March 24, as well as during individual, artist-led workshops. All events are free with admission to the grounds; registration encouraged as space is limited. Register at www.wavehill.org, by calling 718-549-3200, Ext. 305 or at the Perkins Visitor Center when you next visit. Children 12 and older are welcome to join if accompanied by an adult. Wave Hill, 675 W. 252 St. 718-549-3200.