The Pratt Nature Center on Papermill Road in New Milford will hold its second annual Pratt-a-Thon Nov. 21-23.

The event is part of the center's annual appeal to raise funds for the property, animals, community programs, school programs and scholarships.

Staff and volunteers will camp out in the center's yurt for 50 hours straight.

Offerings will include archery from 3:30 to 5 p.m., nature/winter holiday crafts from 5 to 7 p.m. and a campfire with s'mores at 8 p.m., all Nov. 21; a bird walk and bird crafts at 8 a.m., yoga at 11 a.m., nature/winter holiday crafts from noon to 2 p.m., a screening of "Wall-E" at 2 p.m., bedtime stories with Bruno from 6:30 to 7:30 p.m. and a bonfire and music for people 21 and older at 8:30 p.m., all Nov. 22.

On Nov. 23, there will be fairy houses from 10 a.m. to noon and predatory prey from 12:30 to 2 p.m.

For information, visit www.prattcenter.org.