BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Capital Nature - ECPv6.15.20//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
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:20260418T103000
DTEND;TZID=America/New_York:20260418T123000
DTSTAMP:20260424T111811
CREATED:20260412T133654Z
LAST-MODIFIED:20260412T133654Z
UID:10004309-1776508200-1776515400@capitalnature.org
SUMMARY:Vernal Pool Tour
DESCRIPTION:(MD) (Anacostia Watershed Society) Join the Anacostia Watershed Society for a Vernal Pool Tour at Powder Mill Community Park! Vernal pools are temporary seasonal pools of water that provide habitat for specialized species like wood frogs and spotted salamanders. If you’d like to get closer to the vernal pools to checkout what’s inhabiting them\, we recommend wearing rubber boots.
URL:https://capitalnature.org/event/vernal-pool-tour/
LOCATION:Powder Milk Community Park\, 3099 Powder Mill Rd\, Adelphi\, MD\, 20783\, United States
CATEGORIES:Citizen Science,Nature Observation,Tour
GEO:39.0307841;-76.9543576
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Powder Milk Community Park 3099 Powder Mill Rd Adelphi MD 20783 United States;X-APPLE-RADIUS=500;X-TITLE=3099 Powder Mill Rd:geo:-76.9543576,39.0307841
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260404T193000
DTEND;TZID=America/New_York:20260404T210000
DTSTAMP:20260424T111811
CREATED:20260324T234832Z
LAST-MODIFIED:20260324T234832Z
UID:10004236-1775331000-1775336400@capitalnature.org
SUMMARY:Community Science Night
DESCRIPTION:(MD) (Montgomery Parks) Are you interested in learning about local wildlife and helping out nature. Then check out our Community Science program at Locust Grove Nature Center. Nighttime is often the best chance to encounter wildlife such as owls\, foxes\, bats\, and frogs. Join a Naturalist for a guided wildlife-monitoring walk and help document the species that make their home here. Each session introduces participants to the iNaturalist app (please download ahead of time)\, which we’ll use to record photos and sounds of the plants and animals we discover.  Ages 16 +.
URL:https://capitalnature.org/event/community-science-night/
LOCATION:Locust Grove Nature Center\, 7777 Democracy Blvd\, Bethesda\, MD\, 20817\, United States
CATEGORIES:Citizen Science,Classes & Workshops,Nature Observation
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260403T080000
DTEND;TZID=America/New_York:20260403T113000
DTSTAMP:20260424T111811
CREATED:20260323T222520Z
LAST-MODIFIED:20260323T222520Z
UID:10004221-1775203200-1775215800@capitalnature.org
SUMMARY:Meadowood Butterfly and Dragonfly Survey
DESCRIPTION:(VA) (Northern Virginia Bird Alliance) Butterfly and dragonfly surveys are carried out April-October\, normally on Friday mornings\, at one of four sites around Occoquan Bay\, all within the 15-mile diameter circle established for the annual North American Butterfly Association’s Annual Count. \nThe results of these surveys are made available to the participants and other interested individuals and agencies\, including the Fairfax County Park Authority\, the Northern Virginia Regional Park Authority\, and agencies of the U.S. Interior Department. The results of the butterfly-dragonfly surveys are summarized\, along with the results of the general surveys\, in an annual report.
URL:https://capitalnature.org/event/meadowood-butterfly-and-dragonfly-survey/
LOCATION:Meadowood Park\, 12810 New Hampshire Ave\, Colesville\, 20904
CATEGORIES:Citizen Science,Nature Observation,Wildlife
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260402T183000
DTEND;TZID=America/New_York:20260402T203000
DTSTAMP:20260424T111811
CREATED:20260331T172144Z
LAST-MODIFIED:20260331T172144Z
UID:10004289-1775154600-1775161800@capitalnature.org
SUMMARY:Naturalist Tools for Community Science
DESCRIPTION:(MD) (Nature Forward) Join Naturalist and Capital Nature co-founder Ana Ka’ahanui for this 5-week online course to gain practical fluency with digital apps (like iNaturalist\, eBird\, Merlin Bird ID\, and GLOBE Observer) and websites used by naturalists\, researchers\, and conservationists worldwide. Along the way\, you’ll learn how everyday observations contribute to scientific knowledge and conservation efforts. This course is part of Nature Forward’s Natural History Field Studies program. Starts\, Thursday\, April 2 and runs for 5 weeks through April 30.
URL:https://capitalnature.org/event/naturalist-tools-for-community-science/
LOCATION:VA
CATEGORIES:Citizen Science,Classes & Workshops
ORGANIZER;CN="Nature Forward":MAILTO:contact@natureforward.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260328T080000
DTEND;TZID=America/New_York:20260328T100000
DTSTAMP:20260424T111811
CREATED:20260323T211648Z
LAST-MODIFIED:20260323T211648Z
UID:10004216-1774684800-1774692000@capitalnature.org
SUMMARY:Springtime Birding at Huntley
DESCRIPTION:(VA) (Northern Virginia Bird Alliance) Join us for a spring bird outing at beautiful Huntley Meadows Park! Explore meadows\, woodlands\, and marshes alongside NVBA bird guides Arielle Smith (she/her) and Gabrielle Jennings (she/her)\, who will help you observe and identify bird species the group encounters.
URL:https://capitalnature.org/event/springtime-birding-at-huntley/
LOCATION:Huntley Meadows\, 3701 Lockheed Blvd\, Alexandria\, VA\, 22306\, United States
CATEGORIES:Birds,Citizen Science,Nature Observation
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260328T080000
DTEND;TZID=America/New_York:20260328T100000
DTSTAMP:20260424T111811
CREATED:20260323T211103Z
LAST-MODIFIED:20260326T010924Z
UID:10004214-1774684800-1774692000@capitalnature.org
SUMMARY:Birding by Ear
DESCRIPTION:(VA) (Northern Virginia Bird Alliance) Join us for Birding by Ear with Colt Gregory and Kris Lansing at Riverbend Park where more than 190 species of birds have been recorded. This FREE bird outing will include a short introduction followed by a walk along a nearby trail to practice identifying birds by their vocalizations.
URL:https://capitalnature.org/event/birding-by-ear-at-riverbend/
LOCATION:Riverbend Park\, 8700 Potomac Hills St\, Great Falls\, VA\, 22066\, United States
CATEGORIES:Birding,Citizen Science,Nature Observation
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260327T100000
DTEND;TZID=America/New_York:20260327T123000
DTSTAMP:20260424T111811
CREATED:20260323T150059Z
LAST-MODIFIED:20260323T150059Z
UID:10004202-1774605600-1774614600@capitalnature.org
SUMMARY:Mussel Survey at Kingman Island
DESCRIPTION:(DC) (Anacostia Watershed Society) Join the Anacostia Watershed Society for a wild freshwater mussel survey in Kingman Lake! We will be walking in mud that can be very mucky in waders (AWS can provide you with a pair if you don’t have your own). If you’re not comfortable walking in mud using waders\, we recommend joining us at a different event.
URL:https://capitalnature.org/event/mussel-survey-at-kingman-island/
LOCATION:Driving Range Parking Lot of the Langston Golf Course\, 2556 Benning Rd NE\, Washington\, DC\, 20002\, United States
CATEGORIES:Citizen Science,Conservation,Nature Observation
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260325T073000
DTEND;TZID=America/New_York:20260325T120000
DTSTAMP:20260424T111811
CREATED:20260323T210720Z
LAST-MODIFIED:20260323T210720Z
UID:10004213-1774423800-1774440000@capitalnature.org
SUMMARY:Natural Resources Survey at Occoquan
DESCRIPTION:(VA) (Northern Virginia Bird Alliance) If you would like to discover native birds\, other fauna and flora — in the company of dedicated citizen scientists — then consider joining this outing! \nMany know Northern Virginia for its economic dynamism\, cultural development and ever-changing landscape.  Less well known are the places sheltering remnants of an earlier\, vital\, natural history: Occoquan Bay NWR\, Meadowood Recreation Area and other parks and preserves in eastern Fairfax and Prince William Counties.  Each of these publicly-protected sites has a particular blend of habitats representative of Northern Virginia’s special natural character. \nA report of each of the weekly\, monthly surveys is emailed to participants as well as the U. S. Fish & Wildlife Service\, Bureau of Land Management and other managing agencies.  Summary reports\, checklists and analyses of survey data provide an up-to-date inventory of species and insight into the state of populations.
URL:https://capitalnature.org/event/natural-resources-survey-at-occoquan-3/
LOCATION:Occoquan Bay National Wildlife Refuge\, 14050 Dawson Beach Rd\, Woodbridge\, VA\, 22191\, United States
CATEGORIES:Citizen Science,Outdoor Experience
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260321T100000
DTEND;TZID=America/New_York:20260321T130000
DTSTAMP:20260424T111811
CREATED:20260308T222025Z
LAST-MODIFIED:20260308T222025Z
UID:10004167-1774087200-1774098000@capitalnature.org
SUMMARY:Invasive Plant Early Detection at Peirce Mill
DESCRIPTION:(DC) (Rock Creek Conservancy) Help the National Capital Region Invasive Plant Management Team\, Rock Creek Park\, and Invader Detectives survey for Corydalis incisa (Incised Fumewort). We will be hiking along the creek on trails south of Peirce Mill and using pin flags and iNaturalist to record any instance of the plant that we find. Corydalis incisa was first detected in Bronx County\, NY in 2005 and has spread rapidly across the East coast ever since. C. incisa forms dense populations that suppress native plant growth. Our goal is to search for and understand the extent of both of this species so we can assess potential responses.
URL:https://capitalnature.org/event/invasive-plant-early-detection-at-peirce-mill/
LOCATION:Peirce Mill\, 2401 Tilden St NW\, Washington DC\, 20008\, United States
CATEGORIES:Citizen Science,Conservation,Volunteering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260219T110000
DTEND;TZID=America/New_York:20260219T120000
DTSTAMP:20260424T111811
CREATED:20260112T041814Z
LAST-MODIFIED:20260112T041846Z
UID:10003960-1771498800-1771502400@capitalnature.org
SUMMARY:Project Feederwatch
DESCRIPTION:(MD) (Montgomery Parks) Are you interested in birding? Do you want to be part of a national community science project? Then\, join us for Project FeederWatch. Project FeederWatch is a seasonal community science project\, where participants count the different species of birds that flock to a bird feeder. All levels of birders are welcome. This project meets weekly on Thursdays through February. Ages 5+.
URL:https://capitalnature.org/event/project-feederwatch-5/
LOCATION:Locust Grove Nature Center\, 7777 Democracy Blvd\, Bethesda\, MD\, 20817\, United States
CATEGORIES:Birds,Citizen Science,Nature Observation
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260216T090000
DTEND;TZID=America/New_York:20260216T110000
DTSTAMP:20260424T111811
CREATED:20260206T040325Z
LAST-MODIFIED:20260206T040325Z
UID:10004117-1771232400-1771239600@capitalnature.org
SUMMARY:Documenting Birds and Biodiversity Workshop
DESCRIPTION:(DC) (Friends of the National Arboretum) Join us for a birding workshop led by the DC Bird Alliance! This engaging session is ideal for nature enthusiasts of all levels\, designed to enrich your birdwatching experience with a special focus on photography. Highlights: \n\nWildlife Photography Tips:\nLearn to capture stunning images of wildlife using cell phones and cameras.\n\n\nBiodiversity Documentation:\nDiscover how to edit and submit photos to platforms like iNaturalist and eBird.\n\n\nPhoto Management:\nGet tips on organizing your photo library without cloud storage.\n\n\nCommunity Science Round-table Discussion:\nJoin our collaborative discussion on the ethics of sharing photos for science. Together\, we’ll explore how birdwatchers contribute valuable data and support conservation efforts.
URL:https://capitalnature.org/event/documenting-birds-and-biodiversity-workshop/
LOCATION:U.S. National Arboretum\, 24th & R St NE\, Washington DC\, 20002\, United States
CATEGORIES:Birds,Citizen Science,Classes & Workshops,Nature Observation,Outdoor Experience
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260213
DTEND;VALUE=DATE:20260217
DTSTAMP:20260424T111811
CREATED:20260206T034748Z
LAST-MODIFIED:20260206T035058Z
UID:10004112-1770940800-1771286399@capitalnature.org
SUMMARY:Great Backyard Bird Count
DESCRIPTION:(DMV) (Audubon and Cornell Lab) Spend time in your favorite places watching birds—then tell us about them! In as little as 15 minutes notice the birds around you. Identify them\, count them\, and submit your counts to help scientists better understand and protect birds around the world. If you already use eBird or Merlin\, your submissions over the 4 days count toward GBBC.
URL:https://capitalnature.org/event/great-backyard-bird-count/
LOCATION:VA
CATEGORIES:Birds,Citizen Science,Nature Observation
ORGANIZER;CN="National Audubon Society":MAILTO:customerservice@audubon.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260211T190000
DTEND;TZID=America/New_York:20260211T203000
DTSTAMP:20260424T111811
CREATED:20260111T210901Z
LAST-MODIFIED:20260111T211055Z
UID:10003946-1770836400-1770841800@capitalnature.org
SUMMARY:Frog Watch Training (Virtual)
DESCRIPTION:(MD) (Natural History Society of Maryland) FrogWatch is a nationwide citizen science program that tracks frog populations throughout the United States. Participation is a fun way to learn about amphibians as well as getting to know your local wetlands and frog & toad species. In the workshop you will learn how to identify frog and toad calls and how to document their calling activity at your local site to provide invaluable data on frog and toad populations in your community. \nParticipants will choose a monitoring site that is easily accessible and close to where they live or work to listen to frogs that are calling throughout the breeding season (February 1st – August 31st).
URL:https://capitalnature.org/event/frog-watch-training-virtual/
LOCATION:VA
CATEGORIES:Animals,Citizen Science,Classes & Workshops
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260211T190000
DTEND;TZID=America/New_York:20260211T200000
DTSTAMP:20260424T111811
CREATED:20260206T035029Z
LAST-MODIFIED:20260206T035029Z
UID:10004113-1770836400-1770840000@capitalnature.org
SUMMARY:How to Participate in Great Backyard Bird Count (Virtual)
DESCRIPTION:(DMV) (Audubon and Cornell Lab) Embrace the joy of birds by participating in the Great Backyard Bird Count (GBBC) taking place February 13-16\, 2026. This lively\, beginner-friendly webinar will inspire you to deepen your connection with birds while joining a worldwide count. \nJoin this one-hour live event to discover tips\, tricks\, and ideas to prepare for the GBBC\, a fun and impactful global community science event! GBBC team members will share how to participate with confidence\, while special guest and author Julia Zarankin explores beginner birding and the love and joy of backyard birds.
URL:https://capitalnature.org/event/how-to-participate-in-great-backyard-bird-count-virtual/
LOCATION:VA
CATEGORIES:Birds,Citizen Science,Classes & Workshops
ORGANIZER;CN="National Audubon Society":MAILTO:customerservice@audubon.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260205T110000
DTEND;TZID=America/New_York:20260205T120000
DTSTAMP:20260424T111811
CREATED:20260112T041751Z
LAST-MODIFIED:20260112T041751Z
UID:10003959-1770289200-1770292800@capitalnature.org
SUMMARY:Project Feederwatch
DESCRIPTION:(MD) (Montgomery Parks) Are you interested in birding? Do you want to be part of a national community science project? Then\, join us for Project FeederWatch. Project FeederWatch is a seasonal community science project\, where participants count the different species of birds that flock to a bird feeder. All levels of birders are welcome. This project meets weekly on Thursdays through February. Ages 5+. \nWe will not be meeting on December 25 and 26. We will also not be meeting on January 1 and 2.
URL:https://capitalnature.org/event/project-feederwatch-4/
LOCATION:Locust Grove Nature Center\, 7777 Democracy Blvd\, Bethesda\, MD\, 20817\, United States
CATEGORIES:Birds,Citizen Science,Nature Observation
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260131T100000
DTEND;TZID=America/New_York:20260131T110000
DTSTAMP:20260424T111811
CREATED:20260114T012848Z
LAST-MODIFIED:20260114T012848Z
UID:10004016-1769853600-1769857200@capitalnature.org
SUMMARY:Introduction to iNaturalist
DESCRIPTION:(VA) (Arlington Parks) iNaturalist is an awesome tool to document and learn about the natural world around us. Come learn how to use the phone/tablet app and explore observations on the website\, then put it into practice with a walk outside! Teens ages 12+ are welcome to attend with a registered adult.
URL:https://capitalnature.org/event/introduction-to-inaturalist/
LOCATION:Gulf Branch Nature Center & Park\, 3608 Military Rd\, Arlington\, VA\, 22207\, United States
CATEGORIES:Citizen Science,Classes & Workshops,Nature Observation
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260129T110000
DTEND;TZID=America/New_York:20260129T120000
DTSTAMP:20260424T111811
CREATED:20260112T041659Z
LAST-MODIFIED:20260112T041659Z
UID:10003958-1769684400-1769688000@capitalnature.org
SUMMARY:Project Feederwatch
DESCRIPTION:(MD) (Montgomery Parks) Are you interested in birding? Do you want to be part of a national community science project? Then\, join us for Project FeederWatch. Project FeederWatch is a seasonal community science project\, where participants count the different species of birds that flock to a bird feeder. All levels of birders are welcome. This project meets weekly on Thursdays through February. Ages 5+. \nWe will not be meeting on December 25 and 26. We will also not be meeting on January 1 and 2.
URL:https://capitalnature.org/event/project-feederwatch-3/
LOCATION:Locust Grove Nature Center\, 7777 Democracy Blvd\, Bethesda\, MD\, 20817\, United States
CATEGORIES:Birds,Citizen Science,Nature Observation
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260122T190000
DTEND;TZID=America/New_York:20260122T203000
DTSTAMP:20260424T111811
CREATED:20260114T003750Z
LAST-MODIFIED:20260114T003750Z
UID:10003989-1769108400-1769113800@capitalnature.org
SUMMARY:Amphibian and Reptile Monitoring 2026 Season Kickoff
DESCRIPTION:(VA) (Loudoun Wildlife Conservancy) Our local amphibians and reptiles are both susceptible to habitat destruction and pollutants and can often be victims of being misunderstood. Join Loudoun Wildlife Conservancy for an introductory look at our local amphibians and reptiles\, what our citizens can do to help protect their habitats\, and what related programs are available through Loudoun Wildlife to help monitor populations and increase community awareness.
URL:https://capitalnature.org/event/amphibian-and-reptile-monitoring-2026-season-kickoff/
LOCATION:Rust Library\, 380 Old Waterford Rd NW\, Leesburg\, VA\, 20176\, United States
CATEGORIES:Animals,Citizen Science,Conservation
END:VEVENT
END:VCALENDAR