Bobolink Walk, June 15th

Photo by Kathlin Simpkins

Thursday, June 15, 2023
7:30 – 9:00 am
Cost: Free

Registration is REQUIRED.

The Clifton Institue
6712 Blantyre Road
Warrenton, Virginia 20187

Join this visit to an active Bobolink nesting colony in partnership with the friends at Virginia Working Landscapes! Bobolinks are unique and beautiful birds that select hay fields for nesting. Sadly, they are declining as a result of nest losses from cutting the hay early in the summer. Participants should enjoy views of adults and fledglings and hear their wonderful song that is reminiscent of R2-D2. The private property we will visit still hosts these wonderful birds because the owners delay haying until the Bobolinks have finished nesting. You should also see a variety of other breeding birds such as Purple Martins, Grasshopper Sparrows, Eastern Meadowlarks, and Blue Grosbeaks.

Plant Family Identification Workshop, June 10th

Image: Courtesy of The Clifton Institute

Saturday, June 10, 2023
10:00 am – 12:00 pm
Cost: Free

Registration is REQUIRED.

The Clifton Institue
6712 Blantyre Road
Warrenton, Virginia 20187

If you’re learning to identify plants, learning the common families can really help narrow down your options when you’re faced with an unfamiliar specimen. If you already know a few plants, learning their families can provide a useful framework to help organize all the species rattling around in your brain. Whatever level you’re at, learning to identify the plant families around us is a really fun way to get to know the natural world. In this program, Managing Director Eleanor Harris will give a brief talk on the ways to identify the most common plant families in Virginia. Then she will lead a short walk in the fields to practice your plant family identification skills!

Firefly Walk, June 9th

Image: Courtesy of The Clifton Institute

Friday, June 9, 2023
8:00 – 9:30 pm
Cost: $10 ($5 for Friends of the Clifton Institute)

Registration is REQUIRED.

The Clifton Institue
6712 Blantyre Road
Warrenton, Virginia 20187

Who doesn’t love fireflies? Many of us have fond memories of catching fireflies or watching a magical light show on a summer evening. But why do fireflies flash? What do they eat? How many species are there? And are fireflies disappearing? Learn all about these fascinating insects with Ariel Firebaugh, firefly researcher and Director of Scientific Engagement at UVA’s Blandy Experimental Farm (Boyce, VA). After a short talk, participants will walk around grounds, practice identification, and enjoy the light show!

FMN CE Event Recap: Wandering through the Wildflowers at Riverbend Park with Alonso Abugattas

Photo of Alonso Abugattas by FMN Laura Anderko

On April 23, 2023, Fairfax Master Naturalists spent a cool, sunny Sunday hiking with native plant expert Alonso Abugattas to learn more about native and invasive wildflowers. FMN members in attendance learned to identify many native plants such as Canada Waterleaf, Star Chickweed, Wild Blue Phlox, Smooth Solomon’s Seal, False Solomon’s Seal, Spring Beauty, Ramps/Wild Leeks, Sweet Cicely, Virginia Bluebells, Blue and Cream Violets, Clustered Snakeroot, Sessile Trillium, and Kidney Leafed Buttercup. Non-natives included Gill over the Ground, Garlic Mustard, Bulbous Buttercup and Star of Bethlehem. Participants also heard stories about the folklore and uses of a variety of wildflowers. One example, the Spring Beauty plant is also known as fairy spuds for its small potato-like edible roots. See photos below for more.

Photo by Laura Anderko, Canada Waterleaf (Hydrophyllum canadense)

Photo by FMN Laura Anderko, Spring Beauty (Claytonia virginica)

Register for Clean the Bay Day! June 3rd

Image: courtesy of the Chesapeake Bay Foundation

The registration for Clean the Bay Day is now live!

Every year Virginians all over the state join together to clean litter that jeopardizes the health of Chesapeake Bay. To participate in Clean the Bay Day on Saturday, June 3 register hereThe earlier you register, the more choices you will have regarding cleanup sites. For groups, it is recommended you register early to ensure you can all be at the same location. This year we’re highlighting Zone Captains and their critical work helping Clean the Bay Day run smoothly.

 

The Foundation knows not everyone is able to join the volunteers for the main event, they are again offering a DIY option—
Clean the Bay Your Way
—from June 4th through June 10th. Clean the Bay Your Way gives you the option of cleaning-up when you want with friends, family or by yourself! You’re able to conduct your own cleanup effort on smaller sites like your private property, school, workplace, or anywhere else you have permission. Learn more about our DIY option and register here!

Please let Lila know if you have any questions or run into any site issues. Thank you again for your interest in joining this huge volunteer event.

 

Lila Powell

Clean the Bay Day Intern

Chesapeake Bay Foundation

757-644-4122 / [email protected]

 

For Fairfax Master Naturalists the following clean up locations may be of interest:

Alexandria/City of Alexandria
Annandale/Friends of Accotink Creek

Lorton/Mason Neck State Park
Lorton/Mason Neck State Park Boaters

Book Review: Wild Honey Bees: An Intimate Portrait Photography by Ingo Arnot and Text by Jürgen Tautz

Book review by FMN Marilyn Schroeder.

 Photography by Ingo Arnot and Text by Jürgen Tautz

Enjoy awesome closeups and riveting scientific findings about wild honey bees in their natural forest habitat.  Wait a minute!  Didn’t we learn in class that honey bees aren’t native?  Maybe not in Fairfax, but this book is about the life of wild honey bees in the forests of Central Europe.

Huge honey bee portraits and views inside their tree cavity hives grace this coffee-table book.  Any art-lover would be captivated by the amazing photography.  But naturalists will also be intrigued by the research into their behavior, social life and ecology.  The author draws a thought-provoking contrast between bee colonies in cavity hives in the forest versus bee keepers’ hives in farm fields.  A chapter describing the techniques and challenges of photographing bees in flight, in a nest cavity 66 feet off the ground and throughout the seasons of their life cycle attest to the photographer’s skill and commitment.  Can you tell I loved the book?  Wild Honey Bees is available in the Fairfax County Public Library.

Tool Under Development for Amateur Naturalists – Created by FMN Margaret E. Fisher

 Article and photo by FMN Margaret E. Fisher

Tool under development for amateur naturalists – created by FMN Margaret E. Fisher


For those of you who enjoy learning the names of the plants and animals that surround us, we are working on a spreadsheet to make it a little easier to identify Northern Virginia organisms. This tool is for people who have enough experience to take a reasonable guess at the identification of a plant, insect, or other organism but not enough to distinguish it from its lookalikes. Using iNaturalist can sometimes help, but only if you photograph the right part. The idea is to create a cheat sheet – one that can be referenced in the field – that highlights one or two features that can readily make the distinction.

 

For example, you might know enough about flowers to identify the two pictured here as Monkeyflower. One is Sharpwing Monkeyflower (Mimulus alatus) and the other is Allegheny Monkeyflower (Mimulus ringens). At first glance, they look very much alike, but the distinction becomes easy once you know that the former has a short flower stem and long leaf stem, and the latter has a long flower stem and no leaf stem at all. Similarly, you may already know that the terms Painted Lady and American Lady refer to butterflies, but you could use a reminder that the former has a band of small eyespots as opposed to the latter which has two large eyespots on the underside of the hindwing.

 

We are only just getting started on collecting information to fill in the blanks as people submit the results of their research. The spreadsheet will never be complete, but it will be fun to watch it grow as our familiarity with our non-human neighbors increases. To contribute your tips (or corrections, which are welcome and needed), email [email protected].

You can view the Google spreadsheet here.

 

 

Fairfax Master Naturalist Volunteers Help Celebrate Earth Day 2023

Photo: by Susan Martel, FMN Volunteers at Earth Day Fairfax 2023

Article by Fairfax Master Naturalists Jo Doubmia and Susan Martel

The FMN hosted a table at the 2023 Earth Day Fairfax on April 22 at Sully Historic Site.  Attendees were drawn to their table to learn about the FMN training program, invasive plants, native plants, the numerous nature-related volunteer programs available in the county, and bear awareness, among others.  Many expressed appreciations for the FMN volunteer work and several attendees wanted specifically to learn about the application process to the FMN program.

The children had a blast. These budding naturalists were very involved with magnifying glasses examining detailed resin-encased insects. They also enjoyed coloring, talking about insects, and wondering about which insect figure to pick from the treasure chest. Despite the afternoon rain which closed the event earlier than planned, the FMN volunteers had plenty of time and curious visitors to share their interest, experience, and knowledge as nature stewards.  What better way to celebrate Earth Day than enjoying the camaraderie of wonderful FMN volunteers supporting a meaningful outreach event.  For FMN, Earth Day 2023 was a great success!

 

 

 

Ode on a Fish Fossil

Feature photo: Fish Fossil, Green River Formation, Western United States.

Article and photos by FMN Stephen Tzikas

Heard melodies are sweet, but those unheard
Are sweeter; therefore, ye soft pipes, play on;
Not to the sensual ear, but, more endear’d,
Pipe to the spirit ditties of no tone

So goes the second stanza of John Keats’ “Ode on a Grecian Urn” that I vividly remember from my High School days. These were the same words that flashed in my mind upon viewing a fish fossil my friend gave me a few months ago. Funny thing it is, how the poet sometimes seems to precede the scientist in me.

The famous English poet’s ode appreciates the timeless art on an urn, and so too, the fish fossil in my mind was a presentation of beauty and immortality, having patiently waited millennia to tell its story. And just as in the original poem, we have the conclusion of the poem which can equality apply to the fish fossil:

When old age shall this generation waste,
Thou shalt remain, in midst of other woe
Than ours, a friend to man, to whom thou say’st,
“Beauty is truth, truth beauty,”—that is all
Ye know on earth, and all ye need to know.

While these herring fish fossils have their origin in the limestone of the Green River Formation, residents of Fairfax County do not need to go that far, or even leave the county, to find fossils.

My exposure to fossils began as a child reading the How and Why Wonder Book of Dinosaurs, which indicated that the first, near complete, skeleton of a dinosaur was discovered in Haddonfield, NJ. Since that was in my home state, I hoped to visit the town one day. Eventually I would indeed visit that town to see the Hadrosaurus statue commemorating the find in 1858 that started the field of dinosaur paleontology.

During the Triassic Period (201 – 252 Mya), dinosaurs left behind both bones and footprints in Virginia. Fish from local lakes were preserved during the Jurassic (145 – 201 Mya). In the 1920s, dinosaur tracks were discovered at nearby Oak Hill. The Northern Virginia Community College (NVCC) offers many one-day one-credit geology excursions in our general area. I completed many of these courses and had the opportunity to see fossils during these excursions.

On June 24, 2017, I attended the geological field study trip for the

Oak Hill Dinosaur Skin Print, June 24, 2017, 1.5 by 2 Foot Scale

Triassic-Jurassic Rifting of North America in the Triassic Lowlands of Northern Virginia. One of the sites on that trip was the Oak Hill Estate (Home of President James Monroe). This site contains dinosaur tracks. The rock type here is the Lower Jurassic Turkey Run Formation (197 Mya). The fossils are of Eubrontes foot tracks and a rare skin print (see my photograph). Also fossilized was a lungfish burrow from the Jurassic, which had estivated to survive through the summer. Ripples, raindrops imprints, and bioturbation were evident in fossils we saw.

Photo:Holmes Run Gorge Fossils, Nov 18, 2017. Shown here are fossils (Skolithos Linearis) in well-cemented quartzite of the early Antietam Formation. These are Virginia’s oldest fossils and date to the Cambrian Period (485 – 539 Mya).

On November 18, 2017, I took another NVCC geology excursion for the Geologic History of Holmes Run Gorge at the Dora Kelley Nature Park in Alexandria. At the main gorge area we discussed the quartz rocks. Quartz is the last mineral in the Bowen reaction series of fractional crystallization.

I find the Bowen reaction series fascinating as it has some correlation to fractional distillation in my field of chemical engineering. I collected a sample of cloudy white milky quartz, which is extremely resistant to weathering. The cloudiness of milky quartz comes from microscopic inclusions of fluids that have been encased in the crystal from the time the crystal first grew. Our professor showed multiple examples of Quartzite with slashes (see my photograph). High-energy waters transported these cobblestone size rocks originating from the Harper’s Ferry Antietam Formation. The formation was largely quartz sandstone with some quartzite and quartz schist. This formation underwent metamorphic changes. This Quartzite is a hard, non-foliated metamorphic rock that was originally pure quartz sandstone. The sandstone was converted into quartzite through heating and pressure usually related to tectonic compression within orogenic belts. Most noteworthy were the tubeworm line burrows, about a half billion years old. Samples were numerous.