Great Hollow Nature Preserve in New Fairfield will offer programs in the coming days.

They will include a “Black Bears in Your Back Yard” seminar with Budd Veverka, director of land management at the Mianus River Gorge Preserve in Westchester County, N.Y., April 21 from 3 to 4:30 p.m. and a “Make Your Town Mason Jar Terrarium” workshop for children ages 5 to 12 April 28 from 2:30 to 4 p.m. ($15)

For more information, call the nature center, located at 225 State Route 37, at 203-546-7789.

To sign up for the terrarium workshop, email sena@greathollow.org.