May 09, 2022

Thank you everyone CNC 2022 is a wrap!

Just received the final rollup from the CNC organizers:
Here are the collective results:
Observations: 1,694,877
Species: 50,176+, including more 2,244 than rare/endangered/threatened species
Observers: 67,220
Most-observed species globally: Common Dandelion (Taraxacum officinale) - last year it was the Mallard duck ;).

"This marks two years in a row we've made more than one million observations in four days. That’s a reflection of all the time and hard work all of you have put into making the CNC happen in your community."

If you would like to check out what all this looks like in an infographic you can see it here:

For national/provincial results check out

And mark you calendars for next year's City Nature Challenge: April 28 - May 1, 2023

On behalf of the City of Surrey, thank you everyone and looking forward to seeing our community of citizen scientists continue to grow.

Pamela Zevit RPBio
Biodiversity Conservation Planner
City of Surrey, BC

Posted on May 09, 2022 21:24 by surrey-bc_biodiversity surrey-bc_biodiversity | 0 comments | Leave a comment

May 08, 2022

Coming down to the wire!

If you're like me you are squeezing in your last observations as the CNC officially comes to an end today! Here are the comparative stats (with hours to go) between last year and this year:

2021: 3,893 observations, 580 species, 407 identifiers, 96 observers
2022: 1,643 observations, 406 species, 167, identifiers, 75 observers

All in all though we did a fantastic showing for our 3rd year out (we beat Abbotsford which is a biodiversity hotspot ;).

Everyone who contributed to the CNC this year should be proud!

Posted on May 08, 2022 21:12 by surrey-bc_biodiversity surrey-bc_biodiversity | 0 comments | Leave a comment

May 07, 2022

One more day to add your observations!

Just a reminder to upload your observations from April 29-May 2nd asap for them to be counted. CNC organizers will be starting to tally data late tomorrow for the big reveal on Monday!

And a big shout out to all you folks helping with the ID's, so grateful for everyone's efforts!

Posted on May 07, 2022 17:34 by surrey-bc_biodiversity surrey-bc_biodiversity | 0 comments | Leave a comment

May 03, 2022

You Rock Surrey!

Way to go everyone, even with the fluctuating weather we are making a great CNC showing again this year!
Next steps:
1) Make sure you upload your observations by May 8th
2) Please do help with ID where you feel you can

Right now we are sitting with about 60% of CNC observations to reach research grade (38% already there!). Even better we only have ~3% casual observations.

We are also partnering with BioSmart this year to use some cool coding tech to merge eBird data into our finally total for next week.

Can't wait to see how things tally up for the rest of the week!


Posted on May 03, 2022 20:01 by surrey-bc_biodiversity surrey-bc_biodiversity | 0 comments | Leave a comment

April 30, 2022

P.S., try not to leave your observation "unknown"

One of our identifiers comments reminded me to remind everyone to try to categorize your observations to some degree rather than leaving it as unknown. "If you don't know the specific species you've observed, it's helpful to identify as far as you are confident when you upload it, even if it's only very coarse/general ( e.g. 'birds', 'mammals', 'plants'), instead of leaving an observation as 'unknown'. This way, it is more likely to come to the attention of people with specialised knowledge. More info from "Why do people keep adding 'obvious' IDs like 'Plants' or 'Fungi'? By adding a coarse ID of 'Plants' or 'Fungi' these identifiers are making it easier for other people to find your observation. Many experts use our taxonomic filters to focus on their taxon of expertise, so if you post an observation of a plant with no identification, these experts will never find it."

As part of the Herculean task of curating Surrey's iNaturalist observations, we have close to 4000 casual observations to try to improve like unknowns, or "something" or ones without even a photo. iNaturalist's recognition software isn't perfect and we know a number of incorrect ID's get magnified because they get verified to research grade and then show up as visually similar/seen nearby. Fortunately 90% of Surrey's 40,000 or so observations are research grade (~50%) or improving/need ID (~49%), which is lightyears better than when we started back in 2019, which is due in no small part to all the dedicated identifiers and observers out there!

Posted on April 30, 2022 20:01 by surrey-bc_biodiversity surrey-bc_biodiversity | 0 comments | Leave a comment

CNC 2022 Day Two!

Thank you to all our community science troopers out there who are starting to put us on the map! Special nod to @creature_librarian and @david_dyck for bumping up the leader board :). I started out in south Surrey yesterday and will be wandering through city parks in the Fraser Heights area today and tomorrow.

I know there are mini BioBlitzes going on this weekend, as well as City youth program BioBlitzes, so looking forward to seeing all those observations getting uploaded over the coming week.

After a wet start the weather is on our side this weekend. And remember we're having a friendly competition with our neighbour City of Delta, who is participating for the first time this year.

Pamela Zevit RPBio
Biodiversity Conservation Planner
City of Surrey

Posted on April 30, 2022 19:40 by surrey-bc_biodiversity surrey-bc_biodiversity | 0 comments | Leave a comment

April 29, 2022

CNC 2022 Day 1!

Day one of the CNC 2022. don't let the wet stuff this morning dampen your enthusiasm! Whether it's your backyard or one of our hundreds of parks, we hope you get a chance to get out there whatever the weekend has in store and connect to all the incredible plants and wildlife that the City has to offer!

Posted on April 29, 2022 15:03 by surrey-bc_biodiversity surrey-bc_biodiversity | 0 comments | Leave a comment

April 21, 2022

The City Nature Challenge is just over a week away!

In just over seven days City staff, residents and visitors will be in the throes of our biggest annual BioBlitz!

We are excited to be heading into our 3rd annual City Nature Challenge for the City of Surrey. This year the CNC will overlap with Party for the Planet and the launch of the Environmental Extravaganza!

New for this year will be the added competition from other cities, the most since we started participating in 2020. The Tri-cities (Port Moody, Port Coquitlam, Coquitlam), Delta, Richmond and other one-off events will be happening across Metro Vancouver. So far, we’ve held a spot nationally as one of the top five cities participating.

I know a lot of birders prefer to use eBird, thanks to some tech savvy connections through the CNC’s international organizers, participating cities we will be testing out a complementary platform called BioSmart to help compile observations from outside of iNaturalist. So we are going to see if bioSmart will be able to grab eBird data for us this year.

I am deeply grateful for all your efforts to conserve biodiversity locally, regionally, and beyond and am looking forward to seeing Surrey’s citizen science community shine at the CNC again this year!

Pamela Zevit RPBio | Biodiversity Conservation Planner
Parks, Recreation & Culture - Parks Division, Urban Forestry Section
6651 148 St.,, Surrey, BC, Canada V3S 3C7
T 604.590.7254 |
I am privileged to work on the traditional territories (tém:éxw) of the səmyámə (Semiahmoo), sq̓əc̓iy̓aɁɬ (Katzie), Kʷikʷəƛ̓əm (Kwikwetlem), q̓ʷɑ:n̓ƛ̓ən̓ (Kwantlen), Qiqéyt (Qayqayt), Sc̓əwaθən (Tsawwassen) and xʷməθkʷəy̓əm (Musqueam).

Posted on April 21, 2022 14:23 by surrey-bc_biodiversity surrey-bc_biodiversity | 0 comments | Leave a comment

May 13, 2021

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, internationally over 10,000 more people participated compared to last year, and for the first time ever, there were 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)

Here in Surrey, our results were:
3,869 observations (2,607 in 2020)
595 species (560 in 2020)
94 observers (87 in 2020)
318 Identifiers (296 in 2020)

Although it wasn't a competition this year, we HAVE TO point out that for just our second time doing the CNC we were once again in the top 5 for observations in Canada! What an amazing community of nature-appreciating folks we have! An enormous THANK YOU to all of you! And a special shout-out to our top...
Observers: @johndreynolds, @david_dyck, @deboraobrist, @culturenaturewildlife, @fylin, @emilyln, @tkavs, @drclements, @northvandad

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 a while to get through them! We're looking forward to CNC 2022!

Posted on May 13, 2021 14:50 by surrey-bc_biodiversity surrey-bc_biodiversity | 1 comment | Leave a comment

April 26, 2021

City Nature Challenge Begins this Friday, April 30, 2021!

Hard to believe a year has passed and we are about to begin our 2nd international City Nature Challenge ( We formally launched our iNaturalist efforts with our first CNC event last spring - right at the beginning of the pandemic. Nothing like a challenging challenge! Last year we managed to capture 2600 observations for the City, and came in fourth place in the country. Not bad for a newbie! This year we hope to surpass that.

This year over 400 cities are involved, and as with last year rather than a full-blown competition, we're focusing on a collaborative approach, as many cities have restrictions in place. Luckily here in BC we're urging people to connect with nature and here in Surrey safely get out and enjoy our local parks and greenspaces. Even if you can't range far, your backyard or balcony has a lot to offer. No space is too small to support life, and we want you to capture it via photo or audio recording and share it from April 30 - May 3.

We'd love it if you can help us share the event via your networks:

And of course if you are in the Surrey area over the four days, snap and record away - it's your observations and identifications that makes this such an incredible event!

For those not able to get out to capture observations, we hope you can make some time over the review period from April 30 - May 9 to help with the ID's. Many curatorial voices make the data so much more valuable :).

Thank you so much for being part of helping us grow our understanding of Surrey's biodiversity.

Pamela Zevit RPBio
Biodiversity Conservation Planner
City of Surrey, BC

@johndreynolds, @zihuadean, @greensoul, @fylin, @emilyln, @northvandad, @tragedyanne, @ted_goshulak, @david_dyck, @robidium, @katvuobiology, @michellemjackson, @lucky14, @jason566, @jorpri123, @tompoleski, @amydestecroix8, @maharas, @rachelrschultz, @drclements, @balisally, @jaspreet13, @kriscu, @rthomas10, @paulzc, @ynill, @simranbajwa, thuyvand, @dacrow, @tammynguyen1, @hrahmatp, @reignfelismino, @douglasfir, @rica_llamar, @sturgeonhands, @lovethemack, @lynn277, @klpiano, @patrick_cacho, @arawlings, @alexciok, @anamikasangar, @mgenuist, @bluejaybluejay, @hellayyna, @culturenaturewildlife, @rhus_typhina, @simranbangar, @arakhra, @christinann, @jminwall, @alain_boisclair-joly, @cziegler, @jacqueline_weber, @kmilligan, @stephen401, gurleeng13, @taylor_justason, @cptraynor, @harseerat, @muskaanjhutty, @citizen1, @haneenkx, @mgochfeld, @amanda_gray, @demetrik, @laurenceassoignon, @naturewithneill, @s-harpreet, @alotun, @erichabisch, @priyad205, @janewales, @kmutuc, @rachel7353, @aomrani, @cheryletc, @harveenrode, @isaiahreynolds, @sedgequeen, @stewartwechsler, @oxalismtp, @jamie_fenneman, @funvill, @rambryum, @hkaichi, @jbindernagel, @benkendrick, @bluejaybluejay, @ajwright, @drcannings, @cwood, @fmgee, @pileated, @camerondeckert, @bcnativebeesociety, @the_rainbow_bee, @joderobertsdsf, @winniehwo, @afenn, @tara_moreau, @deedesie

Posted on April 26, 2021 23:07 by surrey-bc_biodiversity surrey-bc_biodiversity | 5 comments | Leave a comment