7 events found.
Week of Events
Monday, April 20, 2026
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April 20, 2026 -⭐Arizona Game and Fish Department: Citizen Science Case Study – Land Snails in Arizona
⭐Arizona Game and Fish Department: Citizen Science Case Study – Land Snails in Arizona
Citizen or community science is a way for the public to get involved in science by incorporating volunteers in different aspects of the research process. For years, the Arizona Game and Fish Department has relied on volunteers to help us carry out our mission to conserve Arizona's diverse wildlife resources. Since April is Citizen Science...
Free
Tuesday, April 21, 2026
No events on this day.
Wednesday, April 22, 2026
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April 22, 2026 -Greater Phoenix City Nature Challenge 2026: Acts of Science – Connected − Earth Day Animal Spot-A-Thon
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April 22, 2026 -Maricopa County Parks and Recreation: Discovery Station – What is the City Nature Challenge?
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April 22, 2026 -Maricopa County Parks and Recreation: City Nature Challenge Practice Hike
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April 22, 2026 -Maricopa County Parks and Recreation: Discovery Station – Be a Citizen Scientist!
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April 22, 2026 -Mesa Public Library: Citizen Science – Earth Day Animal Spot-a-thon
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April 22, 2026 -Mesa Public Library: Earth Day Animal Spot-A-Thon
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April 22, 2026 -Mesa Public Library: Walk-in Wednesday presents – Earth Day Animal Spot-A-Thon
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April 22, 2026 -Phoenix Public Library: Earth Day Animal Spot-A-Thon, a Do NASA Science LIVE! Event
Greater Phoenix City Nature Challenge 2026: Acts of Science – Connected − Earth Day Animal Spot-A-Thon
Help NASA-supported researchers study wildlife conservation from wherever you are. All you need is curiosity. Featured Project: Snapshot Wisconsin During this virtual event, you’ll explore trail camera photos and classify the animals you see to help track changes in wildlife that informs wildlife management and conservation decisions. Hear from the project scientists, ask questions, and discover...
Free
Maricopa County Parks and Recreation: Discovery Station – What is the City Nature Challenge?
Stop by an information table where Ranger Derik will teach you how to use your phone to identify and document your nature findings to help the scientific community. Ranger Derik will host a drop-in information table to get you on your way to becoming a Citizen Scientist using the free iNaturalist app that identifies and...
Free with Park Fee
Maricopa County Parks and Recreation: City Nature Challenge Practice Hike
Learn about the April 24-27 City Nature Challenge and free smartphone apps that can help you identify plants, animals, and more, while helping contribute to science! Join Ranger Eric on a short, easy walk between the Nature Center and the Quail Trailhead while we learn about the free iNaturalist app you can use to identify...
Free with Park Fee
Maricopa County Parks and Recreation: Discovery Station – Be a Citizen Scientist!
Stop by an information table where Ranger Kevin will teach you how to use your phone to identify and document your nature findings to help the scientific community. Ranger Kevin will host a drop-in information table to get you on your way to becoming a Citizen Scientist using the free iNaturalist app that identifies and...
Free with Park Fee
Mesa Public Library: Citizen Science – Earth Day Animal Spot-a-thon
Help scientists identify as many animals as possible in camera trap images. This event is a part of "Acts of Science: Connected," which will bring us all together in April to celebrate participation in real research for Citizen Science Month! SciStarter is aiming toward a shared goal of 2.5 million acts of science by the...
Free
Mesa Public Library: Earth Day Animal Spot-A-Thon
Celebrate Earth Day by helping scientists monitor wildlife! In this hands-on event, you’ll explore trail camera photos and help classify the animals you see. Your contributions support a NASA-supported research project that tracks changes in wildlife distributions and abundances over time—critical data that informs wildlife management and conservation decisions. This Citizen Science event is a...
Free
Mesa Public Library: Walk-in Wednesday presents – Earth Day Animal Spot-A-Thon
This is a live, interactive Acts of Science connected event delivered by scientists and SciStarter educators. Featured Project Participants will identify animals in camera-trap images from real wildlife research projects. These observations help scientists monitor biodiversity and support conservation research worldwide. Participants will contribute to real research in real time, guided throughout the session, and...
Free
Phoenix Public Library: Earth Day Animal Spot-A-Thon, a Do NASA Science LIVE! Event
Participants will identify animals in camera-trap images from real wildlife research projects. These observations help scientists monitor biodiversity and support conservation research worldwide.
Free
Thursday, April 23, 2026
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April 23, 2026 -Maricopa County Parks and Recreation: Discovery Station – What is the City Nature Challenge?
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April 23, 2026 -Maricopa County Parks and Recreation: City Nature Challenge Practice Hike (Easy Level)
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April 23, 2026 -Maricopa County Parks and Recreation: City Nature Challenge Practice Hike
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April 23, 2026 -Maricopa County Parks and Recreation: City Nature Challenge Practice Hike (Moderate Difficulty)
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April 23, 2026 -Verde Valley Birding and Nature Festival: Watershed Report Card
Maricopa County Parks and Recreation: Discovery Station – What is the City Nature Challenge?
Stop by an information table where Ranger Derik will teach you how to use your phone to identify and document your nature findings to help the scientific community. Ranger Derik will host a drop-in information table to get you on your way to becoming a Citizen Scientist using the free iNaturalist app that identifies and...
Free with Park Fee
Maricopa County Parks and Recreation: City Nature Challenge Practice Hike (Easy Level)
Learn about the April 24-27 City Nature Challenge and free smartphone apps that can help you identify plants, animals, and more, while helping contribute to science! Join Ranger Eric on a short, easy hike on the interpretive trail near Area 3 (see map link below) while we learn about the free iNaturalist app you can...
Free with Park Fee
Maricopa County Parks and Recreation: City Nature Challenge Practice Hike
Learn about the April 24-27 City Nature Challenge and free smartphone apps that can help you identify plants, animals, and more, while helping contribute to science! Join Ranger Eric on a roughly 2-3 mile round trip hike on the Bajada and Goat Camp Trails while we learn about the free iNaturalist app you can use...
Free with Park Fee
Maricopa County Parks and Recreation: City Nature Challenge Practice Hike (Moderate Difficulty)
Learn about the April 24-27 City Nature Challenge and free smartphone apps that can help you identify plants, animals, and more, while helping contribute to science! Join Ranger Eric on a roughly 1-2 mile round trip hike on the Bajada and Goat Camp Trails while we learn about the free iNaturalist app you can use...
Free with Park Fee
Verde Valley Birding and Nature Festival: Watershed Report Card
Friends of the Verde River and The Nature Conservancy recently released the 2025 update to the Verde Watershed Report Card, which was originally released in 2020. The Watershed Report Card is a tool that is designed to assess the health of the watershed, raise public awareness, and guide decision-makers on how best to support the...
Free
Friday, April 24, 2026
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April 24, 2026 -Maricopa County Parks and Recreation: Guided Bird Hike (City Nature Challenge)
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April 24, 2026 -Greater Phoenix City Nature Challenge 2026
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April 24, 2026 -Maricopa County Parks and Recreation: City Nature Challenge Hike
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April 24, 2026 -Maricopa County Parks and Recreation: City Nature Challenge Hike
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April 24, 2026 -Maricopa County Parks and Recreation: Discovery Station – Join the City Nature Challenge
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April 24, 2026 -Maricopa County Parks and Recreation: Guided Bird Hike (City Nature Challenge)
Maricopa County Parks and Recreation: Guided Bird Hike (City Nature Challenge)
Learn about birds of the Sonoran Desert on this easy to moderate guided hike with Ranger Eric while participating in the City Nature Challenge! Join Ranger Eric to look for and learn about resident and migratory birds of the Sonoran Desert on this easy to moderate walk. We will meet at the Nature Center first and...
Free with Park Fee
Maricopa County Parks and Recreation: City Nature Challenge Hike
Join Ranger Nikki on an easy to moderate hike to use your phone to document biodiversity in the park for the City Nature Challenge global Citizen Science competition that runs April 24-27. The City Nature Challenge is a global competition between cities to document biodiversity in regions around the world, taking place this year...
Free with Park Fee
Maricopa County Parks and Recreation: City Nature Challenge Hike
Help with the April 24-27 City Nature Challenge and learn about the free smartphone app iNaturalist that can help you identify plants, animals, and more, while helping contribute to science! This hike accommodates both barrier-free (wheelchair-accessible) and more moderate difficulty trail grades for those that want to hike farther. *Please note time change to 10am-12pm....
Free with Park Fee
Maricopa County Parks and Recreation: Discovery Station – Join the City Nature Challenge
Join Ranger Nikki to learn about this weekend’s City Nature Challenge April 24-27th and how your input can help the scientific community. Ranger Nikki will host a drop-in information table to help you become a Citizen Scientist by joining the global City Nature Challenge taking place this year April 24-27 and help Team Phoenix log...
Free with Park Fee
Maricopa County Parks and Recreation: Guided Bird Hike (City Nature Challenge)
Learn about birds of the Sonoran Desert on this easy to moderate guided hike with Ranger Eric while participating in the City Nature Challenge! Join Ranger Eric to look for and learn about resident and migratory birds of the Sonoran Desert on this easy to moderate walk. We will meet at the Nature Center first and...
Free with Park Fee
Saturday, April 25, 2026
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April 25, 2026 -Maricopa County Parks and Recreation: City Nature Challenge Hike
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April 25, 2026 -Maricopa County Parks and Recreation: City Nature Challenge Hike
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April 25, 2026 -Greater Phoenix City Nature Challenge 2026
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April 25, 2026 -Maricopa County Parks and Recreation: City Nature Challenge Hike
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April 25, 2026 -Arizona Game and Fish Department: Citizen Science for Educators – A Hands-on Workshop
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April 25, 2026 -Maricopa County Parks and Recreation: Discovery Station – Connect with Nature through your Phone
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April 25, 2026 -Greater Phoenix City Nature Challenge 2026: Sustainability Fest
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April 25, 2026 -Maricopa County Parks and Recreation: City Nature Challenge Hike
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April 25, 2026 -Maricopa County Parks and Recreation: Discovery Station – Be a Citizen Scientist!
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April 25, 2026 -Verde Valley Birding and Nature Festival: Hummingbird Conservation
Maricopa County Parks and Recreation: City Nature Challenge Hike
Help document biodiversity of a scenic, under-visited part of the park while participating in the City Nature Challenge with Ranger Eric! The option to do a short vs. a longer hike will be available. Join Ranger Eric for a hike around the scenic southern end of the San Tan Mountain Regional Park around the Malpais...
Free with Park Fee
Maricopa County Parks and Recreation: City Nature Challenge Hike
Join Ranger Jacque on a brief hike and use your phone to document biodiversity in the park for the City Nature Challenge global Citizen Science competition. Citizen Science Month 2026 is an official partner of America 250, the campaign to celebrate the United States of America’s semiquincentennial anniversary. The City Nature Challenge is a global...
Free with Park Fee
Maricopa County Parks and Recreation: City Nature Challenge Hike
Join Ranger Nikki on a moderate hike and use your phone to document biodiversity in the park for the City Nature Challenge global Citizen Science competition that runs April 24-27. The City Nature Challenge is a global competition between cities to document biodiversity in regions around the world, taking place this year April 24-27. This...
Free with Park Fee
Arizona Game and Fish Department: Citizen Science for Educators – A Hands-on Workshop
Are you looking for ways to engage your students in real-world science? Would you like to learn more about citizen science and its role in wildlife conservation ? As Citizen Science Month wraps up, the Arizona Game and Fish Department is pleased to offer this exciting workshop designed specifically for educators. We will dive into...
Free
Maricopa County Parks and Recreation: Discovery Station – Connect with Nature through your Phone
Stop by an information table where Ranger Jacque will teach you how to use your phone to identify and document your nature findings to help the scientific community. Citizen Science Month 2026 is an official partner of America 250, the campaign to celebrate the United States of America’s semiquincentennial anniversary. Love nature but don't know...
Free with Park Fee
Greater Phoenix City Nature Challenge 2026: Sustainability Fest
Discover how to live life more sustainably at Arizona Science Center’s Sustainability Fest Explore topics like rising seas, how to reduce your carbon footprint, composting and recycling, seed germination, and more! Engage with hands-on activities, interact with community partners and vendors and enjoy a full day of sustainable science! All Sustainability Fest activities are included...
Free with Admission
Maricopa County Parks and Recreation: City Nature Challenge Hike
Join Ranger Kevin to learn about and document biodiversity in the park for the City Nature Challenge global Citizen Science competition that runs April 24-27th . The City Nature Challenge is a global competition between cities to document biodiversity in regions around the world, taking place April 24-27th. Ranger Kevin will lead a hike with stops...
Free with Park Fee
Maricopa County Parks and Recreation: Discovery Station – Be a Citizen Scientist!
Stop by an information table where Ranger Kevin will teach you how to use your phone to identify and document your nature findings to help the scientific community. Ranger Kevin hosts a drop-in information table to get you on your way to becoming a Citizen Scientist using the free iNaturalist app that identifies and documents...
Free with Park Fee
Verde Valley Birding and Nature Festival: Hummingbird Conservation
Alice Madar, Executive Director of the International Hummingbird Society, will share her perspective on what makes hummingbirds so special, why targeted conservation for them is critical, what conservation projects are currently underway, and steps you can take to help hummingbirds. With 68% of the world's 370 species of hummingbird in decline, protecting these winged wonders...
$15
Sunday, April 26, 2026
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April 26, 2026 -Greater Phoenix City Nature Challenge 2026
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April 26, 2026 -Maricopa County Parks and Recreation: City Nature Challenge Hike
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April 26, 2026 -Verde Valley Birding and Nature Festival: IBA Survey Workshop – new eBird protocol
Maricopa County Parks and Recreation: City Nature Challenge Hike
Join Ranger Nikki on a moderate hike and use your phone to document biodiversity in the park for the City Nature Challenge global Citizen Science competition that runs April 24-27. The City Nature Challenge is a global competition between cities to document biodiversity in regions around the world, taking place this year April 24-27. This...
Free with Park Fee
Verde Valley Birding and Nature Festival: IBA Survey Workshop – new eBird protocol
The Arizona Important Bird Areas program is launching a streamlined survey protocol utilizing eBird. The surveys will be stationary, 10 minute counts where all birds seen and heard are added to an eBird checklist. The same locations will be surveyed on every visit to create a dataset over time. Participants will receive a printed protocol...