Do You Have Room for a Shade Tree?

Article and photo by Plant NOVA Natives

If your yard sits in the blazing sun in the summer, it may have already occurred to you that a native shade tree would benefit you tremendously. But even if your yard is already graced by one or more mature tree, you should give some serious thought as to whether it is time to start the next generation. Trees in natural areas can live many hundreds of years, but urban and suburban conditions present stresses that may cause premature decline, a problem that can be seen in many of our older neighborhoods. If you wait until a tree dies, it will be a long time before a seedling can grow to full size. Very likely, the time to plant a replacement is now.

There is an unfortunate tendency to replace tall canopy trees with short ornamentals. This does a disservice to the people who will come after us and who will have to contend with even hotter summers and more torrential downpours than we have now. The larger a tree’s canopy, the more benefits it provides in terms of cooling the environment and controlling stormwater, not to mention sequestering carbon, sheltering birds and other critters, and providing food for the caterpillars that are needed to feed baby birds (which only native trees support in noticeable quantities.)

Shorter native trees and shrubs are appropriate for many situations, such as under a power line or in a small yard. There are specific recommendations on the Plant NOVA Trees website about how far from obstacles to plant your trees and how large a soil area to allow. The roots of trees can overlap, though, so you can plant them as close as fifteen feet apart and within five feet of shrubs.

Trees produce shade, but most canopy trees cannot grow in the shade. (The understory is the space where shorter native trees such as Flowering Dogwood and Redbuds thrive.) It is easy to overestimate the available sun. The number of hours of direct sun per day should be measured when the nearby trees have already leafed out. Good choices for planting under existing shade trees include oaks, American Holly and Black Gum, which will grow slowly but steadily in those conditions then rapidly take off if the overstory lightens up in the future. Native oaks hold the place of honor as the most valuable of trees –  the reasons for this are outlined in Doug Tallamy’s most recent book The Nature of Oaks – but any native tree provides major ecological benefits.

There is deep gratification to be had from planting and nurturing a little native tree, even if we ourselves may not be around later to sit under it. It is a simple act, easily accomplished. To find out how easily, see the Plant NOVA Trees website.

Green Service Showcase Judges Needed, May 23rd & 25th

Photo courtesy Lewis HS

Monday May 23rd from 12:50 pm to 2:50 pm and/or
Wednesday May 25th from 7:45 am – 9:45 am
John R. Lewis High School, 6540 Franconia Rd, Springfield, VA

International Baccalaureate Environmental 11th and 12th grade students investigated environmental issues, developed goals/steps, and made some “good trouble” environmental action for the John R. Lewis HS Community. The journey the action took was different depending on the team, but the goal is for them to reflect and propose ideas for future students.

Students in groups or as individuals selected Green service projects focused on one or more of the following:

1. Waste and consumption
2. Sustainable food
3. Outdoor classroom improvements

Top projects will be awarded prizes in the following categories connected to FCPS Portrait of a Graduate:

Most critical thinkers
Most goal oriented and resilient
Most reflective global and ethical citizens
Strongest collaborators
Strongest communicators

If you can join one or both dates, please fill out this google form.

Questions? Contact Rachel Clausen, Environmental Lead Lewis HS, (301) 908-7623 or [email protected].

 

February Birding in Nicaragua

Article and all photos by FMN Robin Duska

Reprinted with permission from Northern Virginia Bird Club, originally published in The Siskin, April 2022

Strong-billed Woodcreeper

The prospect of birding near volcanos and in cloud forest drew me to Bill Volkert and Connie Ramthun’s February 2022 tour to Nicaragua. Likely because of its perennially fraught political climate and, despite its 750+ bird species, its lack of endemics, Nicaragua attracts few international birders. This was, however, the 16th trip for Bill and Connie, experienced and intrepid world travelers. Bill, an ornithologist and former naturalist at Wisconsin’s Horicon Marsh, and Connie, who ran a native plant nursery, live in Wisconsin’s northern Kettle-Moraine.

Birding in gardens at the Best Western Mercedes Hotel across from Managua Airport netted my first trip lifer, a Hoffman’s Woodpecker. We then set off to Volcan Masaya

Masaya volcano

National Park and Visitor Center for an introduction to the geology of this volatile region where three tectonic plates converge. Peering down into the smoking, active Masaya volcano, we watched two Peregrine Falcons flying along its cliffs. Recommended human exposure to the sulphureous fumes? No more than 15 minutes.

Crimson-collared Tanager

By midday, we were in the dry forest of Montibelli private reserve, home to 175 species including Turquoise-browed and Lesson’s Motmots and 10 species of hummingbirds. I wish I’d recorded the surprisingly loud wingbeats of Red-billed Pigeons passing overhead there and at the nearby Chocoyero-El Brujo reserve—the flocks sounded as loud as small aircraft.

We worked with local guides at each site on our trip but unfortunately we “dipped” on Nicaragua’s only near-endemic, the Nicaraguan Grackle (Quiscalus nicaraguensis), allegedly found along Lake Cochibola (Lake Nicaragua) and nearby Lake Managua. Our leaders had occasionally seen it on earlier trips.

From our next base in the attractive colonial city of Granada, we took a morning boat trip amid the 365 islands that were formed when nearby Mombacho volcano erupted around 20,000 years ago. Mangrove Swallows and my favorite Scissor-tailed Flycatchers dipped into the water as we motored around. Among the 39 species seen that morning were a Bare-throated Tiger Heron and amid hundreds of Montezuma Oropendola nests, an optimistic Giant Cowbird. Later, we stopped in San Juan de Oriente, home to potters for over 1000 years. The beautiful and inexpensive pottery features both pre-Colombian and modern designs.

Highland Guan

Next we took the Pan-American Highway into the Matagalpa-Jinotega highlands, beautifully green even in the dry season. El Jaguar Reserve, run by eBird reviewer Liliana Chavarria-Duriaux and her husband, is home to 378 species. In the cloud forest surrounding Liliana’s coffee fields, vulnerable Highland Guan reliably amble out into view. We had fine sightings of three of my favorite trip species: Black-crested Coquette, Strong-billed Woodcreeper, and Slate-colored Solitaire with its ethereal calls.

I especially enjoyed a morning to the west of El Jaguar at Reserva Natural Cerros de Yali where the oak-pine forest, a vital wintering area for warblers including Grace’s and Golden-winged, reaches its southern boundary in Central America. To our delight, four very similar warblers—Townsend’s, Hermit, Golden-cheeked, and Black-throated Green—showed up within minutes of each other. Nearby, a pair of Red Crossbills, a wide-ranging species, fed placidly in a pine.

We went on to enjoy more cloud forest at Selva Negra (Black Forest), where we stayed in lovely green-roofed German-influenced chalets. A

Three-wattled Bellbirds

Pale-billed Woodpecker, like other Campephilus woodpeckers including the extinct Ivory-billed, did its double-knock drumming out along a steep trail. I especially enjoyed watching male and female Three-wattled Bellbirds interact and listening to the male’s echoing call.

Spectacled Owl

Nicaragua’s handful of ornithologists participate in the Neotropical Flyways Project, monitoring and tagging birds for the Motus Wildlife Tracking System. Ecotourism provides valuable support in this vulnerable habitat, but travel now is complicated by the Nicaraguan government’s Covid testing documentation requirements and concerns about birding equipment. Four travelers from Bill and Connie’s two February tours were unable to enter the country, due to the former. After our leaders’ equipment was confiscated upon their arrival, they successfully negotiated for its return and for ours to be allowed in when the rest of us arrived on later flights. I therefore recommend birders not travel independently to the country at this time unless they have contacts in Nicaragua who can help them negotiate such possible impediments.

Despite the pre-arrival issues described, this was one of the more pleasant, well-paced, and satisfying birding trips I’ve taken. As the only non-Wisconsinite in our group, I also enjoyed learning from others who had far more hiking/hunting/farming/gardening experience than I do. Lodgings were comfortable and very clean.

Our group trip list was 211 species during 10 birding days. Bill and Connie plan to return to Nicaragua in 2024 and can be contacted via his website, which also links to Bill’s “Where To Watch Birds in Nicaragua” guide: http://www.billvolkert.com.

Madagascar: Exploring a Biodiversity Hotspot through its Lemurs and Birds, May 17th

Photo: Collared Nightjar, Elizabeth Lyons

Tuesday, May 17, 2022
7 – 8:00pm
Where: ONLINE
Cost: Free
Register here.

The Audubon Society of Northern Virginia presents, Madagascar: Exploring a Biodiversity Hotspot through its Lemurs and Birds.

Dr. Sally Bornbusch and Dr. Libby Lyons, a mother-daughter scientist team, will immerse the audience in the fascinating biodiversity of Madagascar. Based on their first-hand experience with Madagascar as a biodiversity hotspot, they will focus on its famous lemurs, a group of primates found only in Madagascar, and its suite of endemic birds. They will discuss some of the recently extinct animals, the human impacts that continue to challenge the island nation, and conservation efforts being undertaken to protect Madagascar’s unique biological richness. They will also reflect on their scientific career paths in hopes of helping young women and girls pursue their own passions in environmentalism and science.

For more information about this event please click here.

Birding by Ear for Beginners with Colt Gregory, May 12th

Photo: Blackburnian Warbler, Shirley Donald/Audubon Photography Awards

Thursday, May 12, 2022
7 – 8:00pm
Where: ONLINE
ASNV Members: $10
Non-members: $20
Register here.

The Audubon Society of Northern Virginia presents, Birding by Ear for Beginners with Colt Gregory.
Often it is faster and easier to identify a bird by its song. In this program, Colt Gregory will:

– explain the many benefits of birding by ear
– introduce some of the most common birds by their songs and calls
– share resources and apps to help you practice and improve your birding by ear skills.

This program is intended for beginner birders but may be a helpful refresher for more experienced birders. This program welcomes children age 10+ accompanied by a participating adult.

For more information about this event please click here.

Tree Wrapping for Beavers: Workshop and Volunteer Day, May 7th

Photo: Clifton Institute

Saturday, May 7, 2022
10:00am – 12:00pm
Where: The Clifton Institute
6712 Blantyre Road, Warrenton, VA
Cost: Free
Register here.

During this workshop and volunteer day, join Alison Zak, M.A., founder of the Human-Beaver Coexistence Fund, to learn about the importance of coexisting with beavers and how to protect trees from being chewed down. After a brief talk, volunteers will get hands-on experience wrapping trees using HBCF’s recommended methods.

Sun Dogs Over Fairfax County

Article and all photos by FMN Stephen Tzikas

Feature photo: 11/15/16 Sun dog observed from East Falls Church Metro Station near sunset. One can see the smaller left Sun dog over a building. The brighter Sun is on the right.

A long time ago, probably at a flea market, I saw a used book for sale.  It had a catchy title, which one might see on the front page of the National Enquirer.  That catchy title, Flying Saucers on the Attack (1967) by Howard Wilkins, caught my attention.  With a smirk on my face, I picked up the book and browsed through it.  Soon I had completely forgotten about the book’s title because the book had a very interesting list of natural meteorological phenomena in Chapter 10, which the author tried to convey as flying saucers.  Specifically, I recognized

2/22/17 Sun Dog (center) seen above Reston Metro platform near sunset.  Notice this right lobe has a parhelic circle extension (looks like a horizontal ray to the right of the Sun dog).  The faint vertical ray above and below the Sun dog is part of a 22 degree halo.

some of these entries as Sun dogs.  I also realized I had never seen a Sun dog, so I made it a priority to do so.  It didn’t take me long after that commitment to spot my first Sun dog.  In fact, over several months I saw four Sun dogs.  Their photographs are presented in this article.  Three of these were in Fairfax County. Perceptual awareness is such a powerful tool!

The Greeks were the first to identify Sun dogs. Aristotle noted in his Meteorology that “two mock suns rose with the Sun and followed it all through the day until sunset.” Sun dogs are formed when sunlight is refracted in the horizontal plane through six-sided, plate-like ice crystals that float in the atmosphere or in high elevation cirrus and cirrostratus clouds.  Sun dogs can appear solo or on each side of the Sun. The visual thrills don’t stop there. Do an internet search to learn about the different types of Sun arcs and Sun pillars, and parhelic circles. The Moon offers similar phenomena including lunar coronas.  

2/23/15 Sun dog spotted over Lake Audubon near sunset.  I caught a Sun dog looking outside my window.  The bright Sun dog is on the left, while the larger Sun is on the right.

I saw two Sun dogs from the Metro on my way home from work in Washington DC.  This is a good time to see Sun dogs low on the horizon in the late afternoon and as a “captive audience” from a train window.  I had my cell phone camera with me so I photographed the phenomenon, one at East Falls Church metro station, and one at Reston metro station. The pandemic put a pause on my Sun dog viewing opportunities, but I hope they will pick-up in the future again.

10/11/16 Sun dog seen (lower center) from the NJ side of the Delaware Memorial Bridge near sunset.  The bright Sun is on the left by the flag pole.  A good spot to find Sun dogs is from the windshield of your car.  On long trips you might see a Sun dog as I had, on my way home from NJ.

Sun dogs are red-colored at the side nearest the Sun.  Farther out the colors blend from orange to blue shades.

Red is the less deviated color, giving the Sun dogs that red inner edge. So Sun dogs are like a reversed rainbow, that is they have a reversed color scheme, because primary rainbows are red on the outside and violet on the inside. Sun dogs tend to occur when the Sun is near the horizon.  Sun dogs most commonly appear during the winter in the middle latitudes.  They can be quite bright, making one think they are actually viewing the Sun, if the Sun is blocked from view, such as being obstructed by a building.

If you have never seen a Sun dog, I think you will be pleasantly surprised with my photographs.  It’s really amazing all the sorts of things one can see in the sky whether during the day or at night.  I am always attentive for interesting atmospheric phenomena. I have seen quite a lot of weird things that I have had to research for answers.  As Master Naturalists we often look down or around us to observe nature, but sometimes a lot can be seen by looking up.

Box Turtle Community Science Survey, May 18th, weather dependent

Photo: Clifton Institute

Wednesday, May 18,2022
9:00am – 3:00pm
Where: The Clifton Institute – Google Maps
6712 Blantyre Road
Warrenton, Virginia 20187

Free
Register here.

The Clifton Institute is starting a research project to study box turtles. They want to know what habitats they use, what time of year they’re most active, how big their territories are and how much overlap neighboring territories have, and most importantly what can be done to help conserve this long-lived species. To start, they need to have a better idea of how many box turtles there are on their property and where they can find them.  The Clifton Institute needs your help! In late May or early June, they are going to wait for rainy weather and spend a day walking all of the trails looking for box turtles. They will divide registrants into teams to cover more ground. The more eyes the better! No experience is needed. Volunteers will be walking on uneven and potentially steep trails.

They chose May 18 as the date they expect to be the earliest possible survey date, but they will wait for the right weather and email registrants with more information.

 

Fairfax County Park Authority Accessible Trails

Photo: Fairfax County Park Authority

Fairfax County has over 334 miles of trails in the County Park system.  The Park Authority’s goal is to provide the public with a trail network that is safe, enjoyable, flexible, maintainable, and environmentally responsible. The Fairfax County Park Authority is also committed to the provisions of the Americans with Disabilities Act (ADA) which includes making programs, services, and facilities accessible for visitors and employees with disabilities.  The County does maintain a list of recommended accessible trails within its trail network.  A list of FCPA accessible trails can be found below.

Click here for information on general characteristics used to denote an accessible trail.

RECOMMENDED ACCESSIBLE TRAILS:

All trails listed below were measured from the closest accessible parking spaces on site to the trail and totaled in a round trip format.

 

Raptor Rapture, April 30th — CANCELED

UPDATE:  THIS EVENT HAS BEEN CANCELED TO PROTECT THE RAPTORS FROM AVIAN FLU

 

Photo: Stacey Remick-Simkins

Saturday, April 30, 2022
10:00 am – 12:00 pm
Where: Belle Haven Park
No Registration required.

The Raptor Rapture event is open to the public and does not require registration.  It will be held in Belle Haven Park, which is located off the George Washington Memorial Parkway just south of Old Town Alexandria.  It is recommended to use a GPS to obtain directions by entering “Belle Haven Park” as your destination.

The event may be cancelled due to inclement weather, in which case we will post a cancellation notice to our website and Facebook page. Sending an email to [email protected] is the best way to get in touch if you have any additional questions.