Great Hollow Nature Preserve and Ecological Research Center in New Fairfield will offer a spring eggstravaganza March 31 from 10 a.m. to noon.

The program, geared toward children ages 5 to 12, will teach attendees about the many different animals that lay eggs and the special structures that local species of birds, reptiles, amphibians, fish, and invertebrates make to protect their eggs.

In addition, a hunt for some of those eggs on the preserve will be held at the center at 225 State Route 37.

The cost is $10 per child for non-members and $5 for children for members.

In other news, the center is accepting registration for its state-licensed, weekly day camp for children ages 5 to 10.

Camps are held on the center’s 825-acre nature preserve (www.greathollow.org).

Participants will explore Great Hollow’s creeks, forests, meadows, and trails and learning about the critters that live on the property.

Each weekly session includes science-based environmental education activities, live animal presentations, games, hikes, and daily time for self-directed nature play.

For more information and registration, email camp director Sena at sena@greathollow.org or 203-546-7789.