November at Mashomack

Trails are open 7 days a week, from dawn to dusk.


The Visitor Center Exhibits are open Thursday Through Saturday, from 10 a.m. – 3 p.m.
Visitor Center Bathrooms open daily 8 a.m. – 6 p.m.  


Please note this schedule is subject to change as we closely follow

Covid community levels for Suffolk County.


* Mashomack will be closed to visitors* 
November 5th and 6th as we welcome the Hunters of Color group to the preserve. 
© Adam Bundy/TNC

November on the Preserve 

Days are getting shorter, air is getting colder and the last of warm weather migrants like the osprey have flown south for the winter. In turn, we look forward to the return of winter waterfowl who will soon be joining our year-round residents. Throughout November, peeks of colors continue to dot the landscape.

Don’t forget to check the most up-to-date fall color reports on the New York Fall Foliage Report.


© Adam Bundy/TNC

© Don Bindler/TNC 


Bluebird Nestbox Numbers

Dedicated bluebird volunteers completed another successful season of nestbox monitoring at the preserve. Over the course of five months, 30 nestboxes were closely monitored and number of fledglings recorded for both bluebirds and their nestbox neighbors, the tree swallow. The final season numbers included 37 bluebirds and 71 tree swallows successfully hatched and fledged from their boxes. As the weather cools, nestboxes remain empty, waiting until the birds return to build their nests in early spring. Interested in helping out with our bluebird nestbox monitoring next year?

Email mashomackpreserve@tnc.org for more information. 

Bluebird nestlings keep both parents busy delivering insects. Artwork courtesy of TNC. 


Nature For All: Accessibility Updates at the Visitor Center 

Mashomack’s Visitor Center and boardwalk have welcomed visitors for decades. Recently, our facilities have received an upgrade. Volunteer Jack Larsen has replaced the seating area along the boardwalk, while our bathroom wing is now accessible via a new, universally accessible ramp. 

© Rebecca Kusa/TNC 


Late Fall Programing   


Saturday Seedlings  

Join us at Mashomack one Saturday a month for fun, hands-on learning with our team. During this hour-long program, we’ll explore the natural world around us and learn about different animals and habitats at the preserve. Activities will include crafts, snacks and/or exploring our trails. Ages 4-8. All programs from 9 a.m. – 10 a.m. Reservations required.

  • Saturday Seedlings: Hibernation Huddle — Saturday, November 12th
  • Saturday Seedlings: Seasonal Snowflakes – Saturday, December 10th

For questions or reservations, email MashomackPreserve@tnc.org.


Volunteer Workdays  

Temperatures are dropping and so are the leaves! Every year, Mashomack collects our brown leaf litter and transports to Sylvester Manor as part of their compost program. Together, we’re working on our closed-loop system of carbon cycling right here on Shelter Island. Read more about our partnership here. Interested in helping with our annual leaf cleanup? We’ll be out multiple days over the next few months, so please reach out if you’d like to come and lend a hand! All are welcome.

  • Multiple dates, November and December 2022 

Keep an eye out for winter programs to be announced!
For questions or reservations for programs, email MashomackPreserve@tnc.org.


November Book in the Woods 

A Tale of Two Beasts by Fiona Roberton 

Come take a self-guided, half-mile walk and read as you go. In this adventure, a little girl “rescues” a strange beast from the woods and takes him home. But for some reason, the little beast is not happy. Come learn both sides of this funny story! A perfect family nature adventure and a great way to get your kids into the outdoors.


2022 Global Photo Contest Winners 

View the winners of The Nature Conservancy’s 2022 Global Photo Contest! 

© Li Ping/TNC Photo Contest 2022 

Grand Prize Winner, by Li Ping, China

BRANCHING OUT On either side of a highway, gullies formed by rainwater erosion span out like a tree in Tibet, an autonomous region in southwest China. 


Click on trail map to download.  


The Nature Conservancy works across New York, the United States and in 79 countries and territories to conserve the lands and waters on which all life depends. Learn more about our work at nature.org/NewYork 

Join us today



Copyright (C) 2021 The Nature Conservancy. All rights reserved. 


AAQ / Resource: Stelle Lomont Rouhani Architects