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DTSTART;TZID=America/New_York:20260424T000000
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CREATED:20260419T165527Z
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UID:10004337-1776988800-1777334340@capitalnature.org
SUMMARY:2026 City Nature Challenge
DESCRIPTION:(DMV) Join community and citizen scientists all over the globe to observe wildlife: animals\, plants\, and fungi in backyards\, neighborhoods\, and parks in urban areas. Using iNaturalist to document them\, you can share your observation to help scientists track the wildlife that share our urban areas. See DC metro area events here and in this calendar. Register to track you progress and DC area observations. \nFind out about the global event.
URL:https://capitalnature.org/event/2026-city-nature-challenge/
LOCATION:VA
CATEGORIES:Citizen Science,Nature Observation,Outdoor Experience
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260426T080000
DTEND;TZID=America/New_York:20260426T100000
DTSTAMP:20260424T045841
CREATED:20260325T020152Z
LAST-MODIFIED:20260325T020152Z
UID:10004263-1777190400-1777197600@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-24/
LOCATION:Dyke Marsh\, Alexandria\, VA\, 22307\, United States
CATEGORIES:Birding,Nature Observation,Outdoor Experience
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260426T083000
DTEND;TZID=America/New_York:20260426T103000
DTSTAMP:20260424T045841
CREATED:20260420T221553Z
LAST-MODIFIED:20260420T221553Z
UID:10004342-1777192200-1777199400@capitalnature.org
SUMMARY:Bird Walk + City Nature Challenge Walk at Theodore Roosevelt Is.
DESCRIPTION:(Capital Nature) (DC Bird Alliance) (Northern VA Bird Alliance) \nWe’ll be looking for birds and making nature observations using the iNaturalist app as part of the global City Nature Challenge—an annual effort to document local biodiversity. From songbirds to insects and plant life\, every observation contributes to a broader understanding of the ecosystems around us.
URL:https://capitalnature.org/event/bird-walk-city-nature-challenge-walk-at-theodore-roosevelt-is/
LOCATION:Theodore Roosevelt Island\, Washington DC\, United States
CATEGORIES:Birding,Nature Observation,Outdoor Experience
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260426T100000
DTEND;TZID=America/New_York:20260426T120000
DTSTAMP:20260424T045841
CREATED:20260419T171041Z
LAST-MODIFIED:20260419T171041Z
UID:10004339-1777197600-1777204800@capitalnature.org
SUMMARY:CNC iNaturalist Bioblitz on Mount Vernon Trail
DESCRIPTION:(VA) (Friends of the Mount Vernon Trail) Help document and learn more about animal and plant species on the Mount Vernon Trail. Join us to find and document plants and animals for the City Nature Challenge! A Bioblitz is a communal citizen-science effort to record as many species within a designated location and time period as possible. Bioblitzes are also an excuse for naturalists\, scientists\, and curious members of the public to meet in person in the great outdoors and are a lot of fun! \n\nSee the registration page for exact event location.
URL:https://capitalnature.org/event/cnc-inaturalist-bioblitz-on-mount-vernon-trail/
LOCATION:Daingerfield Island Marina\, Washington Sailing Marina 1 Marina Dr\, Alexandria\, VA\, 22314\, United States
CATEGORIES:Citizen Science,Nature Observation,Outdoor Experience
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260426T140000
DTEND;TZID=America/New_York:20260426T150000
DTSTAMP:20260424T045841
CREATED:20260419T164234Z
LAST-MODIFIED:20260419T164234Z
UID:10004336-1777212000-1777215600@capitalnature.org
SUMMARY:CNC Observation with Arlington Master Naturalists
DESCRIPTION:(VA) (Arlington Regional Master Naturalists) Bring curiosity and a camera (mobile phone cameras are great!) to explore the hill and hollows of Brandymore Castle for the City Nature Challenge. Photograph wild plants and critters to upload to iNtauralist to help the greater DC area excell in this friendly worldwide competition. After the guided trek\, feel free to explore on your own. Wear sturdy shoes and long pants to protect from prickles and poison ivy. \nFor more information\, click https://citynaturechallengedc.org/ \n  \n 
URL:https://capitalnature.org/event/cnc-observation-with-arlington-master-naturalists-2/
LOCATION:Madison Manor Park\, 6225 12th Rd N\, Arlington\, VA\, 22205\, United States
CATEGORIES:Citizen Science,Nature Observation,Outdoor Experience
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260426T140000
DTEND;TZID=America/New_York:20260426T150000
DTSTAMP:20260424T045841
CREATED:20260422T124531Z
LAST-MODIFIED:20260422T124531Z
UID:10004344-1777212000-1777215600@capitalnature.org
SUMMARY:Native Plant Walk at Meadowlark
DESCRIPTION:(VA) (NOVA Parks) Experience the beauty of spring woodlands on a guided walk through Meadowlark Botanical Gardens’ Potomac Valley Collection! Led by Keith Tomlinson\, former Garden Manager who developed and curated Meadowlark’s native plant collection\, this walk offers a unique opportunity to explore the region’s rich botanical diversity. \nWith 45 years of experience in botanical gardens\, museums\, environmental education\, and plant conservation\, Keith brings a wealth of knowledge and insight to this immersive tour. His expertise and passion for native plants will deepen your appreciation for the beauty and ecological importance of our local flora and fauna\, information that will be helpful to those who are interested in adding native plants to their own yards.
URL:https://capitalnature.org/event/native-plant-walk-at-meadowlark/
LOCATION:Meadowlark Botanical Gardens\, 9750 Meadowlark Gardens\, Vienna\, VA\, 22182\, United States
CATEGORIES:Nature Observation,Outdoor Experience,Plants
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260426T160000
DTEND;TZID=America/New_York:20260426T173000
DTSTAMP:20260424T045841
CREATED:20260419T172320Z
LAST-MODIFIED:20260419T174957Z
UID:10004340-1777219200-1777224600@capitalnature.org
SUMMARY:CNC Observation with DC Master Naturalists
DESCRIPTION:(VA) (Capital Nature) Join DC Master Naturalists and Capital Nature for our annual City Nature Challenge observation at Fort Dupont Park. Fort Dupont hosts some of DC’s most abundant biodiversity of birds\, fungi\, and plants (as well as invasive plant challenges)\, but they often go unnoticed. Help us put this green gem on the map while you enjoy a restorative walk with naturalists. The walk will be led by wildlife biologist Carrie Seltzer from iNaturalist. \nThe late afternoon starting time will increase our opportunities to hear local and migratory birds! \n 
URL:https://capitalnature.org/event/cnc-observation-at-fort-dupont-with-dc-master-naturalists/
LOCATION:Fort Dupont Park\, Minnesota Ave SE\, Washington DC\, 20019\, United States
CATEGORIES:Citizen Science,Nature Observation,Outdoor Experience
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