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DateTopicDescriptionRecording Resource 1Resource 2Preso link
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NOTE! The recordings are being moved from Zoom to Box as of 2/27/2026. Links may be missing or not work for the next few days. Thanks for your patience!
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December 8, 2026
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November 10, 2026Dinovember: Living fossils in the DC metro area
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October 13, 2026Things that glow in the darkFluorescence, bioluminescence and glowing eyes!
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September 8, 2026Fabulous fall fungi with SerenellaUpdated for 2026!
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August 11, 2026
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July 14, 2026prep for moth week?
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June 9, 2026
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May 14, 2026CNC celebrationLink
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April 28, 2026City Nature Challenge ID Night (special edition)
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April 14, 2026iNat 101: Getting Ready for the City Nature Challenge!
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March 10, 2026Audio Observations of Frogs and Toads with Karyn Molines
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February 10, 2026Hoppers with @nomolosx
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January 13, 2026@mmmmbugs on insects
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December 9, 2025Tentative: Bonus Species incl. powdery mildews, rust fungi
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November 11, 2025Late Fall Wildflowers
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October 14, 2025Welcome to Arachtober! Learning about spiders on iNatLinkNotesSlides
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September 9, 2025Fabulous Fungi with Serenellanew edition! Link
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July 8, 2025Secondary Sexual Characteristics of MothsDave Webb on mothsLinkNotes
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June 10, 2025Slime Molds of the SummerSerenella Linares on slime moldsLinkNotes
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May 20, 2025City Nature Challenge CelebrationLink
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May 13, 2025Bird Migrants of the Mid-AtlanticMatt Felperin on birdsLinkNotes
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April 29, 2025ID Night for City Nature Challengenot recorded
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April 8, 2025iNaturalist 101 for City Nature ChallengeSerenella, Ana, Deborah iNat 101 for CNCLink
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March 11, 2025Spring Ephemerals with Kerry WixtedLinkNoteslink
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February 11, 2025Using iNat far from HomeLink
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January 14, 2025Lichens with Natalie HoweLinkNotes
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December 10, 2024Tiny forests: Mosses and Lichens of the DMVLinkSlidesNotes
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November 12, 2024Lauraceae, Solanaceae and Alliums ID For National Spicy Guacamole DayLinkNotes
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October 8, 2024Celebrate Aractober! Spider IDnot recorded
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September 10, 2024Fabulous Fungi with SerenellaLink
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August 13, 2024Aphids with Natalie HernandezAphids life cycle, body parts, common identifiable aphids in DC Metro area (free-living vs. gall-forming aphids) Wow, Aphids are hard! LinkNotes
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June 11, 2024Caterpillars of the DMV by Alonso AbugattasLinkNotes
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May 14, 2024Spring WildflowersLinkNotesNotes 2
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May 2, 2024CNC-DC ID Night 2not recordedResources for ID
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April 30, 2024CNC-DC ID Night 1not recordedResources for ID
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April 9, 2024Be a City Nature Challenge Champion!Serenella, Ana, Deborah iNat 101 for CNCLink
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March 12, 2024Using iNat in the gardenintro to iNat for gardeners: bugs/weeds/captive & cultivated/geoprivacy Link
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February 13, 2024Bradley Simpson on conifersLink
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January 9, 2024Natalie Howe on LichensLinkNotes
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December 12, 2023Kerry Wixted on MD MammalsSightings, tracks, scat ID tipsLinkNotes
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November 14, 2023Pumpkin Spice and other Fall SightingsWhat, no powerpoint? Wild and local things related to your favorite fall foodsLinkNotes
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October 10, 2023Spiders! Creepy, Crawly and Cute!8-legged friendsLinkNotes
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September 12, 2023Fantastic Fungal friendsBasic Mushroom ID with SerenellaLink
2023.09.12-Fantastic Fungal Friends-iNat Calls
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August 9, 2023Wetlands with Jorge Bogantes-MonteroWetland creatures of the Anacostia River WatershedLinkNotes
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July 11, 2023Woody Plant ID with Kerry WixtedObserving details of leaves, stems, bud scars to ID woody plantsLinkNotes
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June 13, 2023Buzzing Flies IdentificationZachary Dankowicz on fly ID basics and use of the fly ID guideLinkNotes
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May 9, 2023Herbaceous Plants and Tips for Getting Your iNaturalist Plant Observations IdentifiedSerenella Linares and Deborah Barber on observing common herbaceous plants of the DC areaLinkNotes
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April 11, 2023Introduction to the City Nature ChallengeSerenella, Ana, Deborah on getting ready for CNCLink
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March 14, 2023Spring Bees with Dr. Clare WalkerBees vs. flies vs. wasps, important spring bees, photo tips, ID tips LinkNotes
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February 14, 2023All About GallsDeborah on where to look for them, how to capture good observationsLink Gall ID Helpers
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January 10, 2023Ten Ways to Up your iNat GameCarrie and Deborah on when the weather is too bad to be outside (or anytime), here are some ways you can enhance your iNaturalist skills and recordsLinkTen Ways
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December 6, 2022Winter Tree ID with Bradley SimpsonIdentifying common trees of the DC area in winter by looking closely at buds, leaf scars, bark, and other cluesLinkWinter Tree ID Helpers
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November 1, 2022Liking the Lichens with Natalie HoweLearn how to identify the 10 most common lichens in the DC Metro area!LinkLichen ID Helpers
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October 4, 2022Champion IdentifiersThe October Virtual ID Night will feature some of the DC Metro area’s top identifiers. Come meet the people who have helped YOU identify many of your finds! Hear about the strategies used by @mmmmbugs, @billhubick, @tsn and @jmgconsult, who collectively have done 156,000+ ID’s on DC area observations…and counting! Learn about how Maryland observations contribute to the amazing Maryland Biodiversity Project! And as always, be prepared to pick up a few new iNat power user tricks.LinkNotes
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September 6, 2022Mushroom IDIn commemoration of the National Mushroom Month, Serenella Linares will be joining The Nature Conservancy and Capital Nature in a monthly iNaturalist ID call via zoom. Fungi bonanza! With peak emergence of macro fungi starting in the last week of August, October presents the opportunity to work on the new obs for the year while learning to ID species for the rest of the season.LinkFungi ID Helpers
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August 2, 2022Fishing for ID's with Trey SherardFish for identifications with the iNaturalist app on August 2 at 7pm! Help us welcome new participants and advance species identifications on the thousands of observations made in our region. We will start by reviewing the amazing tools that iNaturalist provides to help you identify your own and others’ observations, no matter what your skill level is. Our featured naturalist and Anacostia Riverkeeper, Trey Sherard, will give us a 20-min crash course on fish ID, followed by the opportunity to join a virtual breakout room focusing on your area of interest: Osteichthyes - bony fish, Ray finned fish, and other aquatic life! This activity is for everyone and there is value in helping to bring the unknowns to even the kingdom level!Link
Fish ID Helpers
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July 5, 2022Summer InsectsGuest speaker: Peihan Orestes. Dip your toes into insect identification using the iNaturalist app! Help us welcome new participants and advance species identifications on the thousands of observations made in our region! We will start by reviewing the amazing tools that iNaturalist provides to help you identify your own and others’ observations, no matter what your skill level is. Then our featured Naturalist, Peihan Orestes, will give us a 20 min crash course on insect ID, followed by the opportunity to join a virtual breakout room focusing on your area of interest: butterflies, beetles, dragonflies, and beyond! LinkResources
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June 7, 2022PollinatorsCancelled
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May 5, 2022Observations from City Nature Challenge 2022During ID week for City Nature Challenge 2022, we’ll get together to accurately get as many of our local observations as possible to Research Grade. We’ll share productivity tips on moving quickly through the easy ones, and a handy technique for spotting misidentifications where observers may have been misled by iNaturalist’s computer vision.
Not recorded
Quick Links
Copy-Paste Comments Sheet
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May 3, 2022Observations from City Nature Challenge 2022During ID week for City Nature Challenge 2022, we’ll get together to accurately get as many of our local observations as possible to Research Grade. We’ll share productivity tips on moving quickly through the easy ones, and a handy technique for spotting misidentifications where observers may have been misled by iNaturalist’s computer vision.
Not recorded
Quick Links
Copy-Paste Comments Sheet
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April 5, 2022Getting Ready for City Nature Challenge 2022!We’ll focus on cleaning up ID’s from City Nature Challenge 2021, to train our eyes for 2022 finds!
Not recorded
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March 1, 2022Cabbages, Cresses and MustardsIn honor of St. Patrick’s Day and in the spirit of corned beef and cabbage, we’ll look at Brassicaceae, the cabbage family. Many local species are visible in late winter, so you’ll get ideas about what to look for in your own forays. They also feature prominently in City Nature Challenge observations.
Not recorded
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February 1, 2022Winter GallsOver the bleak winter of 2020-2021, DC area iNaturalists found 51 species of galls, proving that there’s no off-season for nature observation in our biodiverse area. Learn the secrets of gall identification and documentation, and meet some of the fascinating creatures that make fabulous (de)formations on local flora.
Not recorded
gallformers.org
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January 4, 2022City Nature Challenge: Bonus Species!We’ll share secrets about new species that you can spot if you just look a little closer at organisms you’re already observing. For example, did you know that if you look closely at an Asian ladybeetle, you’re likely to see a fungus called green beetle hanger? Bring your favorite examples of times you’ve been wowed at what you find just by slowing down and looking closer!
Not recorded
Handout
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December 7, 2021Pines, Hollies and Other Evergreens

There’s plenty to observe with iNaturalist, even over the winter. We’ll cover how to photograph members of the pine family to get your best chance of a good ID, how to distinguish American holly from a lookalike that’s an emerging invasive in our area, and we’ll take a look at the different types of lycopodium that are found in the DC area.
Not recorded
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November 9, 2021Lauraceae, Solanaceae and Alliums for National Spicy Guacamole Day
Not recorded
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October 5, 2021Top 10 local plants with Native American medicinal uses for Columbus/Indigenous Peoples Day
Not recorded
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September 7, 2021Pawpaws, persimmons, blueberries, and other native edible fruit for National Pawpaw Day
Not recorded
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August 7, 2021Fish and other beach finds for Shark Week
Not recorded
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July 2021Moths for National Moth Week
Not recorded
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June 2021Pollinators
Not recorded
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