City Nature Challenge 2019: Boulder-Denver Metro Area's Journal

May 15, 2019

Congrats to our Boulder-Denver City Nature Challenge winners!

We are pleased to announce the following winners of the 2019 Boulder-Denver City Nature Challenge:

Most Observations AND Most Species:
Lyn Simuns (lsimuns)

2nd Most Observations AND Most Species:
Phoebe Mertens (phoebemae)

Most Identifications:
Suzanne Dingwell (suzanne11)

Rarest observation:
Shalana Gray (shalana): Northern Leopard Frog

Best Bird photo:
Ann Cooper (wordswild): Meadowlark:

Best Mammal Photo:
Wieferi9, Abert’s Squirrel:

Best Reptile photo:
Kqmazur, Bullsnake:

Best Amphibian photo:
Santi Tabares (selasphorus): American Bullfrog:

Best Insect photo:
Frobi, Painted lady:

Best Plant photo:
Luke Wheeler (lukewheeler): Simpson’s Hedgehog Cactus:

Additional City Nature Challenge Superstars:
Tina Reimer (tlr06754)
Brian O. (Kleric42)
Jared Shorma (blazeclaw)
Bridget Sandoval (bridget_sandoval)

Congrats to you all! I (Melanie Hill) will be reaching out to each of you individually either through the iNaturalist messenger OR through email to let you know what prizes you won and where you can pick them up from in Boulder or Denver. If you have any questions, please send me an email at

Thanks to all for participating, and stay tuned for updates on the 2020 City Nature Challenge!

From your friends at:
The WILD Foundation, Colorado Parks & Wildlife, The Nature Conservancy, Metro Denver Nature Alliance

Posted on May 15, 2019 18:21 by melanie_hill melanie_hill | 1 comment | Leave a comment

May 07, 2019

The results are in!

Boulder-Denver citizen scientists, thank you for making the 2019 City Nature Challenge an absolute success!

The results are in, and as of 9:00am on May 6th, we had:
6,211 total observations, 970 species observed, 406 observers, and 259 identifiers. Of those stats, 5,830 observations and 929 species were verifiable, and 2,479 observations and 389 species were listed as research grade. All thanks to YOU!

Of the 159 cities that competed in this year's CNC, Boulder-Denver placed 43rd for Total Number of Observations, 47th for Total Number of Species Observed, 33rd for Total Number of Participants, and 2nd for Most People in an Arid Climate. Woohoo!

Check out the infographic below to see some of the other global results, and stand by for more results from the Boulder-Denver challenge, including individual prize winners!

Posted on May 07, 2019 18:16 by melanie_hill melanie_hill | 1 comment | Leave a comment

April 30, 2019

The species identification period has begun

We're on to phase two of the City Nature Challenge: the species identification period.

From now until 9:00am MST on May 6th, we need your help identifying the variety of plant and wildlife species in each observation. If you feel comfortable adding IDs, it's an easy process!

- On the main project page, click the green "View All" button to view all observations, or go here:
- Once that section loads, click the "Identify" button
- From there you can browse all observations and either confirm the IDs are correct, or suggest a new one.
- If you only feel comfortable IDing certain types of species, for example birds, click the "Filters" button to add in filters so you only view certain types of observations.

Have fun with it! Consider hosting or organizing a Species ID Party with friends, family, or colleagues. These can be great ways for individuals to learn from one another, and spend time together. Having food and beverages available is always a bonus, too!

And remember that during this same timeframe, you can continue to upload your observations from the April 26-29 bioblitz. Just have everything in before the 9:00am MST deadline on May 6th!

Let us know if you have any questions, we're here to help!

Posted on April 30, 2019 16:12 by melanie_hill melanie_hill | 3 comments | Leave a comment

April 28, 2019

Keep the observations coming!

Looking good, Boulder/Denver! Let's take advantage of this lovely weather before it turns, and collect as many more [wild] plant and wildlife observations as possible.

And if you need more coaxing...

Prizes will be awarded to a number of top City Nature Challenge users in categories such as Most Verifiable Observations, Most Species Observed, Most Species Identified, Best Bird Photo, Best Mammal Photo, Best Insect Photo, Best Amphibian Photo, Best Reptile Photo, Best Plant Photo, Rarest Observation, and more.

Thanks to our sponsors, we have some sweet giveaways available, such as: REI daypacks, gift certificates to Zeal Optics, zero waste gift boxes from EarthHero, chocolate bars from Lily's Sweets, nature photography coffee table books, plus goodies from Colorado Parks & Wildlife and The Nature Conservancy.

Winners will be announced after the conclusion of the CNC, and will be contacted through the iNaturalist message system to coordinate prize pickup.

You have until 9:00am MST on May 6th to upload all your observations from the bioblitz, and to help identify other users' observations. Let's go!

Posted on April 28, 2019 22:18 by melanie_hill melanie_hill | 0 comments | Leave a comment

April 26, 2019

The City Nature Challenge has begun!


Day 1 of the #BoulderDenverCNC is here and as of 9:15am this morning we already have over 50 observations uploaded to our region by 11 different observers. Nice work, everyone! Let's keep the observations rolling in... and please stick to *wild* and *non-captive* observations. Please, no photos of people, pets, farm animals, or potted plants. Thank you!

We have some awesome pubic events lined up throughout Boulder County and the Denver Metro Area, so check them out below. Full descriptions and details are available here:


10:00am-2:00pm: Skins & Skulls at Denver's Commons Park | Led by The Nature Conservancy and the City and County of Denver


7:00am-2:00pm: Barr Lake State Park Festivities | Led by the Bird Conservancy of the Rockies

7:00am-3:00pm: Regis University / Lowell Ponds State Wildlife Area Bioblitz | Led by Regis University Sustainability Club

8:00am-11:00am: Family Day at Bluff Lake Nature Center | Led by Bluff Lake Nature Center

9:00am-3:00pm: Chatfield State Park Bioblitz | Led by Chatfield State Park

10:00am-12:00pm: Nature On Your Cell Phone at Ron Stewart Preserve at Rabbit Mountain | Led by Boulder County Parks & Open Space

10:00am-4:00pm: Butterfly Pavilion Hike | Led by the Butterfly Pavilion

9:00am-11:00am: Audubon Nature Center Bioblitz | Led by the Audubon Center at Chatfield

1:00pm-3:00pm: Majestic View Nature Center Bioblitz | Led by Majestic View Nature Center


9:00am-1:00pm: Wildflower Bonanza Hike at Goshawk Ridge | Led by the WILD Foundation and City of Boulder Open Space & Mountain Parks

9:00am-1:00pm: Boulder Reservoir Bioblitz | Led by City of Boulder Open Space & Mountain Parks

Posted on April 26, 2019 15:15 by melanie_hill melanie_hill | 0 comments | Leave a comment