Lisa Alexander is Executive Director of Audubon Naturalist Society


Areas of Expertise:
Environmental Education
Environmental Policy
Environmental Restoration


Lisa Alexander has served as ANS’s Executive Director since 2013. As Executive Director, she has created a visionary Master Plan that will transform ANS’s iconic headquarters at Woodend Nature Sanctuary Headquarters into a living laboratory for the study of restoration and ecological balance in our increasingly urbanized region.

Lisa plays a leading role in setting diversity, equity and inclusion goals for environmental organizations throughout the Chesapeake Bay watershed. Prior to stepping into the role of Executive Director, she served as both Deputy Director and Director of Environmental Education at ANS. Lisa launched the ANS GreenKids Program, an environmental education partnership with public schools that has served more than 30,000 school children in Maryland, Virginia and the District of Columbia since its inception in 2005.

Ms. Alexander previously worked on numerous, nationally-based educational programs and outreach efforts. She served as an Educational Resource Specialist in the National Digital Library of the Library of Congress, the Director of Product Development for Delta Education, the Science Product Manager for the School Division of Addison-Wesley Publishing Company, and as National Science Consultant for Scott, Foresman and Company.

Lisa is the 2008 recipient of the Montgomery County “Outdoor Educator of the Year” award and was honored by The Washingtonian magazine as a 2009 recipient of their Green Award for her work with GreenKids. She serves on the steering committee of the Choose Clean Water Coalition and was a member of the 2015 Rock Creek Park Green Ribbon Panel.

She has two sons and lives with her husband just steps from Rock Creek Park where she enjoys frequent hikes.


Areas of Expertise:
City Forestry
Community Engagement
Environmental Justice
Urban Greening


Sarah Anderson is an expert builder, not, however, with cement or steel. Sarah builds relationships.

She founded Lillie Leaf Solutions, LLC to help national urban greening stakeholders to develop new ways of addressing equity, access, inclusion, and justice in their work. Sarah’s experience includes developing and administering national programs, managing constituent engagement for associations, and facilitating local and national professional development events. Most recently, she managed the conference program for the Greater & Greener 2017 International Urban Parks Conference. Sarah and her team at Lillie Leaf currently serve as the project lead of the Growing Tree Canopy Through Environmental Justice project which helps to build community capacity for planting and caring for trees in systemically disenfranchised Chesapeake Bay Region communities. Sarah has a dual Bachelor’s degree in Urban & Environmental Studies and a certificate in Geographic Information Systems from the University of Pittsburgh and her Master’s degree in Public Administration from Bowie State University.

Sarah works to build and strengthen ties between urban communities and environmental organizations, and develop plans for environmental and cultural sustainability in D.C.  She has become a partner with ANS to build bridges to urban areas and communities of color, and served on ANS’s Woodend 2065 Master Plan committee, been a keynote speaker at the Conservation Department’s Conservation Café series, served on ANS’s programs committee, and provided sponsorship for the inaugural Naturally Latinos conference.

Stephanie Bozzo - Audubon Naturalist Society Director of Audubon Nature Preschool


Areas of Expertise:
Early Childhood Education
Classroom Instruction
Outdoor Learning
Summer Camp Programs
Youth Development


Learning to plant at Audubon Nature PreschoolStephanie is founding director of the acclaimed Audubon Nature Preschool located at the Woodend Nature Sanctuary in Chevy Chase, Maryland. Founded in 2006, Audubon Nature Preschool offers nature-based, hands-on preschool programs for children aged 6 years and younger.

Stephanie holds a B.S. in Psychology from Virginia Tech with a concentration of her coursework in child development. She also holds a certificate in early childhood education.

Stephanie has extensive experience as an educator in formal classrooms as well as informal classrooms such as summer camp programs and public school enrichment programs, creating and implementing activities as well as providing leadership for children and staff. Connecting children to nature and finding the wonder in every moment is her life’s passion.

Stephanie enjoys hiking, biking, cooking and baking, traveling, seeing live music, and spending time with family and friends. She lives in North Bethesda with her husband, Tom, and their three children. 

Eliza Cava - Audubon Naturalist Society Director of Conservation


Areas of Expertise:
Environmental Education
Environmental Policy
Outdoor Eduction
Outdoor Recreation
Political Action


Eliza Cava - Audubon Naturalist Society Director of ConservationEliza joined ANS as Director of Conservation in 2016. She is an avid canoer and kayaker and believes that healthy streams mean healthy communities. Prior to joining ANS, Eliza worked at Defenders of Wildlife, analyzing federal projects and policies that touched upon a broad range of renewable energy, land management, and wildlife conservation issues. Before working  in environmental policy, Eliza was an environmental and outdoor educator in Maryland, Massachusetts, Tennessee, and Oregon.

Eliza received a B.A. in Environmental Education from Swarthmore College and a Master of Environmental Science from the Yale School of Forestry and Environmental Studies, and is a Senior Fellow in the Environmental Leadership Program’s Chesapeake Regional Network.



Areas of Expertise:
Environmental Education
Water Quality
Youth Education


Gina Ghertner has been an expert-in-the-making most of her life. Growing up in the lush forested lands of Peru, she bore witness to the destruction over time of some of Peru’s magnificent rainforests by various entities, some of them illegal mining companies; others, hunting groups. Ghertner was so affected by the destruction of her rainforests that she dedicated her life to helping prevent harm to nature.

Her love for the rainforest drove her to earn her Bachelor’s of Science degree in Forest Sciences from La Molina National Agricultural University in Lima, Peru. Ghertner has since worked on indigenous rights and sustainable environment programs with the Rainforest Foundation; was a volunteer for Tree Steward in Arlington and Montgomery Counties, and is a citizen scientist for ANS’s Water Quality Monitoring Program. In spring 2016, she created for ANS Vamos al Bosque –meaning in Spanish, Let’s go to the woods. Lately, Ghertner has devoted more time to her new ANS initiative, Testing the Waters, a program that both educates and empowers high school students to evaluate the health of local streams.

Ghertner believes that “everyone has the power to teach others how easy it is to protect the environment.” The more we do, “ day we could all become, in some way, experts on the natural world.”


Areas of Expertise:
Rachel Carson biographer
Beatrix Potter biographer
Environmental History


1970s environmental history students studying under Linda Lear at George Washington University didn’t know Rachel Carson, a woman whose courage, insatiable scientific curiosity, and poetic way with words launched the modern environmental movement. “They found reading Silent Spring hard-going, which it was. So, I said, ‘We’ve got to have something for the students.’ “
Lear meant something that would make Carson’s life and work easier to digest. When the professor couldn’t find material that fit the bill, she detoured. “I started my research not knowing that I grew up (in Pittsburgh) within 50 miles of where Carson grew up in Springdale, PA. I began finding people who knew Rachel and realized I was onto something much bigger than a classroom biography,” said Lear, who is today the definitive biographer of Carson.

Over 15 years, Lear conducted 300 interviews, traveled to four states and landed at ANS where she met Shirley Briggs, Carson’s former assistant and head of the Rachel Carson Council. By winning the confidence of Carson’s editor, Paul Brooks, Lear was able to bring her research to life in 1997 when Rachel Carson: Witness for Nature was published.

“Carson’s expertise is that she’s able to take this massive amount of research and knowledge, and turn it into not just something interesting, but the most beautiful prose imaginable,” said Lear, an ANS member and Montgomery County resident, just as Carson was.

“In the process of writing Silent Spring…Carson didn’t jump at conclusions. She was sicker and sicker (with cancer) and, on some level, she knows this will be her last book. People wanted her to say all insecticides are carcinogenic. She didn’t know that,” Lear said. “(Carson) did know that humans could mess up the world pretty badly with their love of machines and their disregard for nature.”

Carson’s legacy of passion balanced by precision has changed the world, and Lear’s. “More than ever, people are recognizing this woman was quite (remarkable). She had something really important to say, and she said it fearlessly. I’ve grown as a person because of her example,” said Lear.



Areas of Expertise:
Nature Education
Native Plants
Regional Environmental History


“My mother used to take us from my grandparents’ farm in mid-state Illinois to the woods across the road where there were violets, and spring beauties, and bluebells,” said Stephanie Mason, the Senior Naturalist for ANS and Director of Adult Education. “My paternal grandfather was a wholesale florist, so I grew up in a plant world and that’s where, maybe, I come closest to being an expert.”

From a childhood bursting with the wonders of the natural world, Mason found her way to ANS. “When I arrived at ANS in 1989, my naturalist knowledge was pretty slim. But as an intern I could attend all ANS classes for free, so I spent every weekend in the field soaking up both knowledge and teaching styles from experts including botanist Cris Fleming, entomologist Richard Orr, bird-whisperer John Bjerke, butterfly guru Dick Smith, and by shadowing my more experienced co-worker, Senior Naturalist Mark Garland,” Mason said. “I put many miles on my rusting Honda Civic.”

All those miles - bumpy, smooth and flourishing with nature enthusiasts of the highest order -- allowed Mason to blossom as an expert general naturalist in her own right. Today she teaches ANS natural history classes and leads field trips for adults. Mason’s high-energy nature walks are made more memorable because of her jazz-like mimicking of bird songs and colorful commentary on the characteristics of this region’s flora and fauna. Mason also has the enviable task of superintending trips to far away nature paradises, such as Costa Rica, Panama, and the Galapagos Islands.

“It's been satisfying over the years to have field trip participants tell me that I've opened their eyes to the possibilities of wonder in their own backyard. Unlocking secrets of nature is something fun that people can experience, again and again,” Mason said. “But the gratitude goes both ways. Teaching broadens my own understanding of the natural world, and I learn from my students too. They humble me and keep me going back for more.”



Areas of Expertise:
Creek Critters
Outdoor Learning
Pond Study
Water Quality


Frank Sanford is an expert teacher. More than 400,000 hours of living as a teacher over the past 46 years has allowed him to impart knowledge to every age group from preschoolers to adults in their golden years. And Sanford has a grand old time doing it. Which is why some around here call him the Pied Piper of the Natural World. Before joining ANS four years ago, Sanford taught science in Montgomery County Public Schools and at the DC-based Sheridan School. His passion for teaching about science and the environment flows from a lifetime of outdoor learning and experimenting. From fishing to hiking, Sanford’s childhood in St. Louis, MO was flooded with wild adventures in the great outdoors. Working at ANS combines nature and education, two of Sanford’s favorite things. Every first Saturday, he leads our monthly, themed, family hikes, such as Change of Seasons and How Animals Use Color, and has co-taught summer camps on Pond Study, Exploration Hikes, and Ethnobotany (plants and their uses for making dyes and paints, for instance).

Sanford completed the ANS Master Naturalist Program four years ago, and continues taking new courses to build his environmental expertise. “I think my ability to transfer my enthusiasm about the natural world to kids (and adults, too, I hope) is my strength,” Sanford said.



Schedule a visit to either of our beautiful nature sanctuaries by calling (301) 652-9188 Ext. 23 or sending an email message to