Spring Migration Bird Walk at Big Reed Pond Sunday, May 10, 9:30-11:30 am Join the Montauk Library Bird Club on a spring migration walk exploring the woodlands and wetlands of Big Reed Pond, led by Frank Quevedo.

Join Perfect Earth Project's Edwina von Gal, Third House Nature Center's Ed Johann, and Vicki Bustamante of Third House Nature Center and Warrens Nursery for a landscape therapy session where we'll dive into the fascinating relationship between plants and wildlife and what we can do in our yards.

Saturday, April 25 • 11am - 1pm Third House Nature Center 1929 Montauk Highway, Montauk, NY Join Us! Herpetologist Jake Kushner will present an overview of the East End's Reptile and Amphibian populations followed by a walk on the grounds of Third House pointing out and discussing the habits and habitats of our varied frogs, snakes, turtles, salamanders and toads. Jake recently presented his findings on his Tiger Salamander Monitoring Study at the Long Island Natural History

Roots of Resilience: The Beauty and Benefits of our Grasses Presented by Kimberly Simmen, CNLP Saturday March 21, 2026 11am Third House Nature Center 1929 Montauk Highway, Montauk, NY Join us for an engaging and informative presentation on native grasses and discover how to incorporate these beautiful plants into your garden.

WINTER BIRDWATCHING IN MONTAUK Saturday, February 14 10 am - 12 pm. Breakfast provided Lecture will be followed by a bird walk, weather permitting. Third House at Montauk County Park 1929 Montauk Hwy. Montauk, NY (next to Deep Hollow Ranch)

The 2026 Long Island Natural History Conference will be held on Friday, February 27, 2026 at the Stony Brook University Wang Center from 9 am to 4 pm.

A New Year Winter Walk Big Reed Nature Trails, Montauk County Park Saturday, January 3, 2026 | 11AM-1:00PM

The 2nd Americana Christmas Celebration at Third House

Saturday, December 6, 2025, 11:00 am These unique 80’ high parabolic dunes, created by strong northwesterly shifting winds, are slowly marching southeastward covering all in their path. Passing through a maritime pitch pine woodland we will see signs of the Phantom forest. Cradled in the dunes are bogs which are host to many rare and unusual plants. The brackish meadows and interdunal swales shelter many interesting botanical treats which we will be sure to highlight. Rain ca

Third House, Montauk Saturday, November 15, 11am-12pm Third House Nature Center presents a lecture demonstration by Barbara Thomas, longtime East End teaching artist and art lecturer.

Lichens of Long Island with Dr. James Lendemer Nov. 8th, 2025, 11:00 am at Historic Third House in Montauk. Join us for a presentation by Dr. James Lendemer as he takes us on a fascinating journey into the world of lichens. These often-overlooked organisms play vital roles in our forests—providing nitrogen, camouflage, temperature regulation, and seed protection—while adding beauty to our natural landscapes.