City Nature Challenge: the results are in!

A huge THANK YOU to everyone who helped organize, participated in, and identified observations from the 6th annual City Nature Challenge! Despite the ongoing COVID-19 pandemic, we had over 10,000 more people participate compared to last year, and for the first time ever, we made over one million observations in the four days of the challenge!

Here are the collective results:
Observations: 1,270,767
Species: 45,300+, including more than 2,100 rare/endangered/threatened species
Observers: 52,777

Most-observed species globally: Mallard (Anas platyrhynchos)

Since you can't click the links in the infographic, here are some of the interesting observations from around the world:
Peregrine Falcon (Falco peregrinus)
Lixus placidus weevil
Turkish Snail (Helix lucorum)
Witches’ Cauldron (Sarcosoma globosum)
Blainville’s Horned Lizard (Phrynosoma blainvillii)
Purplish-backed Jay (Cyanocorax beecheii)
Sargassumfish (Histrio histrio)
Southern Lion (Panthera leo ssp. melanochaita)
Common Giant Flying Squirrel (Petaurista philippensis)
Euglossa macrorhyncha bee
Adelpha zea butterfly
Short-clubbed Wasp Orchid (Chiloglottis reflexa)


The City Nature Challenge also contributed to the most observations uploaded in a week on iNaturalist again - and also gave iNaturalist the first two weeks ever with over one million observations uploaded!

Thanks everyone! Continue to help IDing those CNC observations - it takes awhile to get through them! We're looking forward to CNC 2022!

-Alison (@kestrel), Lila (@lhiggins), & Amy (@amyjaecker-jones)

Posted by kestrel kestrel, May 10, 2021 20:43



Congrats on all the new milestones and records this year! Thanks for yet another wonderful event, and thanks to all the organisers, volunteers, and participants. See you all next year! :)

Posted by twan3253 2 months ago (Flag)

Tons of fun participating as usual! I just typed up a blog post for the South Florida CNC if anybody wants to see some of our highlights:
Hats off to you all for the work you put in and also for whoever kept iNaturalist running during the very intense workload we put it under! I was a little nervous we were going to have a Pokemon Go situation (servers crashing) but wow, it held together without any issues! Go team iNat and team CNC!

Posted by joemdo 2 months ago (Flag)

Thanks to all organisers! I am proud to be part of the challenge

Posted by apseregin 2 months ago (Flag)

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