BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Capital Nature - ECPv6.15.20//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Capital Nature
X-ORIGINAL-URL:https://capitalnature.org
X-WR-CALDESC:Events for Capital Nature
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/New_York
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20250309T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20251102T060000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20260308T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20261101T060000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20270314T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20271107T060000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260208T080000
DTEND;TZID=America/New_York:20260208T100000
DTSTAMP:20260424T105903
CREATED:20260112T042052Z
LAST-MODIFIED:20260112T042052Z
UID:10003962-1770537600-1770544800@capitalnature.org
SUMMARY:Sunday Morning Bird Walk at Dyke Marsh
DESCRIPTION:(VA) (Friends of Dyke Marsh) Join FODM for a bird walk every Sunday at 8 a.m. The Dyke Marsh Wildlife Preserve is a freshwater\, tidal marsh on the Virginia side of the Potomac River in Fairfax County. It is a unit of the George Washington Memorial Parkway\, U.S. National Park Service.
URL:https://capitalnature.org/event/sunday-morning-bird-walk-at-dyke-marsh-19/
LOCATION:Dyke Marsh\, Alexandria\, VA\, 22307\, United States
CATEGORIES:Birding,Nature Observation,Outdoor Experience
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260208T090000
DTEND;TZID=America/New_York:20260208T120000
DTSTAMP:20260424T105903
CREATED:20260111T221755Z
LAST-MODIFIED:20260111T222218Z
UID:10003954-1770541200-1770552000@capitalnature.org
SUMMARY:RunJuneteenth Winter Trail Series: Difficult Run
DESCRIPTION:(VA) (RunJuneteenth) The Winter Trail Series is an annual event comprised of a rotating set of trail-running meetups held throughout the DC–Maryland–Virginia region. Powered by REI Co-op\, the weekly trail runs will feature trail-shoe demos from several top brands–giving participants the opportunity to test gear directly on different local trails\, while also offering a mix of terrain\, elevation\, and mileage options to keep runners challenged and engaged. \nWe’ll meet at REI Fairfax.
URL:https://capitalnature.org/event/runjuneteenth-winter-trail-series-difficult-run/
LOCATION:Fairfax REI\, 11950 Grand Commons Ave\, Fairfax\, VA\, 22030\, United States
CATEGORIES:Fitness,Outdoor Experience,Social & Cultural
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260208T090000
DTEND;TZID=America/New_York:20260208T130000
DTSTAMP:20260424T105903
CREATED:20260115T153706Z
LAST-MODIFIED:20260115T153706Z
UID:10004062-1770541200-1770555600@capitalnature.org
SUMMARY:Volunteer Day at Dumbarton Oaks Park
DESCRIPTION:(DC) (Dumbarton Oaks Park Conservancy) Join the Conservancy for a day of service and stewardship at beautiful Dumbarton Oaks Park.
URL:https://capitalnature.org/event/volunteer-day-at-dumbarton-oaks-park-5/
LOCATION:Dumbarton Oaks Park\, Lover's Lane and R Street NW\, Washington\, DC\, 20007\, United States
CATEGORIES:Conservation,Stewardship,Volunteering
GEO:38.9129637;-77.0615735
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Dumbarton Oaks Park Lover's Lane and R Street NW Washington DC 20007 United States;X-APPLE-RADIUS=500;X-TITLE=Lover's Lane and R Street NW:geo:-77.0615735,38.9129637
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260208T100000
DTEND;TZID=America/New_York:20260208T160000
DTSTAMP:20260424T105903
CREATED:20260206T031543Z
LAST-MODIFIED:20260206T031659Z
UID:10004102-1770544800-1770566400@capitalnature.org
SUMMARY:Discover Orchids
DESCRIPTION:(DC) (Smithsonian) Stop by the Smithsonian Gardens Discovery Station and explore the connective power of orchids!  Take a closer look at the amazing traits that orchids share\, uncover the history of vanilla\, and get inspired by the Smithsonian Gardens’ orchid collection. Our knowledgeable volunteers are happy to answer your orchid care questions. \nFind the Discovery Station in the exhibition The Connective Power of Orchids during the following times through April 26\, 2026. \n\nMondays: 1–4 p.m.\nTuesdays–Saturdays: 10 a.m. – 4p.m.
URL:https://capitalnature.org/event/discover-orchids/
LOCATION:Smithsonian National Museum of African American History and Culture\, 1400 Constitution Ave. NW\, Washington\, DC\, 20560
CATEGORIES:Plants,Self-Guided
GEO:38.8910607;-77.0325883
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Smithsonian National Museum of African American History and Culture 1400 Constitution Ave. NW Washington DC 20560;X-APPLE-RADIUS=500;X-TITLE=1400 Constitution Ave. NW:geo:-77.0325883,38.8910607
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260208T100000
DTEND;TZID=America/New_York:20260208T173000
DTSTAMP:20260424T105903
CREATED:20260110T224621Z
LAST-MODIFIED:20260110T224621Z
UID:10003912-1770544800-1770571800@capitalnature.org
SUMMARY:Exhibit: Dazzling Diversity
DESCRIPTION:(DC) (Smithsonian Natural History Museum) Celebrate the vast and varied insect world through the pages of early natural history books from the Smithsonian Libraries and Archives. Dazzling Diversity provides a glimpse into the wealth of recorded scientific knowledge in these books\, and the continuing relevance of historical science to contemporary biodiversity research. It offers a snapshot of different classes of insects and their habitats\, while showcasing the careful artistry of scientific illustration. \nOn view through May 11th\, 2026.
URL:https://capitalnature.org/event/exhibit-dazzling-diversity-12/
LOCATION:Smithsonian National Museum of Natural History\, 1000 Madison Drive NW\, Washington\, DC\, 20560\, United States
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260208T103000
DTEND;TZID=America/New_York:20260208T143000
DTSTAMP:20260424T105903
CREATED:20260205T015913Z
LAST-MODIFIED:20260205T015913Z
UID:10004083-1770546600-1770561000@capitalnature.org
SUMMARY:Winter Tree Identification
DESCRIPTION:(DC) (Rhizome) Need a reason to get outdoors this winter? Are you wondering what trees do in the cold? This class will explore the biology and identification of trees in winter. Class is divided into two sections: 10:30am to noon will be held indoors (in-person) to learn about the characteristics that are useful for winter tree ID. We’ll look at samples and photographs during this portion\, then move outdoors to apply the skills to wild and cultivated trees from 12:30 to 2:30. \nThe focus will be on trees that are common in the DC area\, with the hope that participants will later be able to identify some of the same trees around the city and watch them transition into spring.
URL:https://capitalnature.org/event/winter-tree-identification-2/
LOCATION:Rhizome\, 6950 Maple St NW\, Washington\, DC\, 20012\, United States
CATEGORIES:Classes & Workshops,Trees
GEO:38.9741508;-77.0156719
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Rhizome 6950 Maple St NW Washington DC 20012 United States;X-APPLE-RADIUS=500;X-TITLE=6950 Maple St NW:geo:-77.0156719,38.9741508
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260208T140000
DTEND;TZID=America/New_York:20260208T160000
DTSTAMP:20260424T105903
CREATED:20260207T224320Z
LAST-MODIFIED:20260207T224320Z
UID:10004127-1770559200-1770566400@capitalnature.org
SUMMARY:Lep Club Winter Cocoon Hike
DESCRIPTION:(MD) (Natural History Society of Maryland) Join us for a walk in the woods led by Lep Club member Eric Warner\, learn how to find cocoons in nature and how to identify the moth based on the cocoon. Tips for identifying host plants in winter will also be covered\, specifically for cecropia\, promethea and polyphemus moths as we explore the woods. Hike will take place on Sunday Feb. 8th or Sunday Feb. 15th depending on weather. \nThis walk is for Lep Club members only; we encourage you to become a member of NHSM and the Lep club.  The NHSM Lepidoptery Club meets the fourth Wednesday of every month from March-October at 6908 Belair Rd or over Zoom.  
URL:https://capitalnature.org/event/lep-club-winter-cocoon-hike/
LOCATION:Bee Tree Preserve\, Parkton\, MD\, 21120\, United States
CATEGORIES:Classes & Workshops,Nature Observation,Outdoor Experience
GEO:39.6430963;-76.6582589
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260208T153000
DTEND;TZID=America/New_York:20260208T163000
DTSTAMP:20260424T105903
CREATED:20260206T025013Z
LAST-MODIFIED:20260206T025013Z
UID:10004095-1770564600-1770568200@capitalnature.org
SUMMARY:Winter Tree ID Walk
DESCRIPTION:(DC) (National Park Service) Without leaves\, trees suddenly become much harder to identify. Learn some tips and tricks on how to ID a tree without leaves with a ranger on this walk through the park and practice identifying some of your favorite tree species. Meet at the Nature Center and be prepared with warm clothing\, layers\, comfortable and sturdy shoes\, and a hunger for learning. \nWalk may be cancelled in the event of bad weather at the discretion of park staff. Feel free to call the Nature Center (202-895-6070) the day of to confirm.
URL:https://capitalnature.org/event/winter-tree-id-walk/
LOCATION:Rock Creek Nature Center\, 5200 Glover Rd NW\, Washington\, 20015\, United States
CATEGORIES:Classes & Workshops,Nature Observation,Outdoor Experience
GEO:38.9599553;-77.0516936
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Rock Creek Nature Center 5200 Glover Rd NW Washington 20015 United States;X-APPLE-RADIUS=500;X-TITLE=5200 Glover Rd NW:geo:-77.0516936,38.9599553
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260208T160000
DTEND;TZID=America/New_York:20260208T173000
DTSTAMP:20260424T105903
CREATED:20260111T212929Z
LAST-MODIFIED:20260111T212929Z
UID:10003948-1770566400-1770571800@capitalnature.org
SUMMARY:Botanical Gardens of the World (Virtual)
DESCRIPTION:(DC) (Smithsonian Associates) Indulge in a colorful midwinter escape as horticultural expert Keith Tomlinson leads a series of virtual visits that highlight the beauty of notable botanical gardens in settings as varied as Singapore\, the Arizona desert\, and the American Midwest. In vibrant visuals he explores how each garden has taken a unique approach to design and interpretation as they all celebrate plant collections\, conservation\, education\, and the distinctive environments and landscapes in which they bloom: \nFebruary 8  Gardens by the Bay\, Singapore \nFebruary 15  Boyce Thompson Arboretum and the Desert Botanical Garden\, Arizona \nFebruary 22  Missouri Botanical Garden\, St. Louis
URL:https://capitalnature.org/event/botanical-gardens-of-the-world-virtual/
LOCATION:VA
CATEGORIES:Classes & Workshops,Gardens,Natural History
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260208T170000
DTEND;TZID=America/New_York:20260208T183000
DTSTAMP:20260424T105903
CREATED:20260206T035330Z
LAST-MODIFIED:20260206T035330Z
UID:10004114-1770570000-1770575400@capitalnature.org
SUMMARY:Winter Crow Watch
DESCRIPTION:(VA) (Northern Virginia Bird Alliance) Join us and our partners at DC Bird Alliance for a Winter Crow Watch at the Shirlington roost in Arlington\, VA. You’re in for a show as the crows gather here in numbers so large it actually appears on radar! Here we’ll have binoculars and scopes for participants to use to view the crows as they gather for a noisy social time before heading to the roost for the night.
URL:https://capitalnature.org/event/winter-crow-watch-2/
LOCATION:Shirlington Library\, 4200 Campbell Avenue\, Arlington\, VA\, 22206\, United States
CATEGORIES:Birding,Nature Observation,Social Event
GEO:38.8410646;-77.0901363
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Shirlington Library 4200 Campbell Avenue Arlington VA 22206 United States;X-APPLE-RADIUS=500;X-TITLE=4200 Campbell Avenue:geo:-77.0901363,38.8410646
END:VEVENT
END:VCALENDAR