This weekend can be anything you want it to be -- whether it's for the birds or the dogs, a picnic in the park, local charities or Indian culture. Here's a list of things to do in Fairfield on this first weekend of fall:

Birds of a feather will be flocking together at the "Birds in Their Habitat" preview party at 6:30 p.m. Friday at the Connecticut Audubon Center, 2325 Burr St. The evening includes an open bar, a buffet and a silent auction, while giving attendees a sneak peek at a juried artists' exhibition and sale. Tickets for the event are $75. The sale continues through Sunday and admission is $5. Call 203-259-6305, ext. 109, for more information.

Celebrate the start of the new school year Saturday at the Welcome Club of Fairfield and Easton's annual Fall Family Kick-Off Party from 11 a.m. to 2 p.m. at Owen Fish Park, 1401 Stratfield Road. There will be free hot dogs, an ice cream truck will be selling frozen treats, and activities include face painting, games and musical performances. The picnic is free and open to the public. For more information, visit www.welcomeclub.org or email info@welcomeclub.org.

Visit the Pet Protectors 4-Legged Fall Festival on Saturday, from 11 a.m. to 3 p.m., at Sherman Green, corner of Post and Reef roads. There will be a baked goods sale, crafts, a tag sale, stuffed animals, photography and more to benefit the animal-rescue group. For more information, call 203-330-0255 or visit www.petprotectorsrescue.org.

Lace up your sneakers Sunday for the 24th annual Bigelow Tea Community Challenge, starting at the Wakeman Boys & Girls Club, 385 Center St. in the Southport section of town. The event starts at 9 a.m. with a Kids Fun Run, followed by a 2-mile fitness walk at 9:30 a.m. The 5K race for more serious athletes starts at 10:10 a.m. sharp. Registered participants receive a shirt, and those who do the walk or 5K have a chance to win raffle prizes. Proceeds support local charities. For information on registering, visit www.bigelowtea.com/race.aspx.

If the challenge hasn't sapped your energy, head to the Heritage India Festival on Sunday from 11 a.m. to 4 p.m. at Town Hall Green, corner of Old Post and Beach roads. There will be Indian food, crafts, jewelry and dancing. Admission is free. Hosted by the Hindu Cultural Center, more information is available at www.hinduculturalcenter.org.