Wildlife From the 2026 City Nature Challenge

The annual City Nature Challenge is one of those events that I look forward too with great excitement. I don’t like that it brings out my competitive streak, but it always yields some surprises and joys. Please see my Bug Eric blog for this post about the insects I observed, but continue reading for the birds, mammals, and “herps” that I saw.

A male American Goldfinch at the Schlagle Library in Wyandotte County Lake Park, Kansas.

I am most fortunate to have Heidi as a partner. She has amazing observation skills, and is happy to point out what she finds so that I can get my own images, or at least try to. Much of what I see is thanks to her generosity.

Blue-gray Gnatcatcher at Wyandotte County Lake Park, Kansas.

Aside from insects, birds are the most obvious wildlife, and what Heidi is usually looking for. The City Nature Challenge conveniently falls near the peak of spring migration of songbirds, so we have that going for us.

Palm Warbler, Wyandotte County Lake Park, Kansas.

This might be the year of the Palm Warbler here, as that was the most obvious of the warbler species after the abundant Yellow-rumped Warbler that we see throughout the year.

Barn Swallows were nesting *on* the library building at Wyandotte County Lake Park.

Wyandotte County Lake Park, in Kansas, is one of our favorite places to visit, in part because there is a public library branch there, the Mr. and Mrs. F.L. Schlagle Library. It also functions as a nature center, with live captive animals, and bird feeders outside. There are nest boxes for bluebirds and Prothonotary Warblers along that part of the lakeshore, too.

Bald Eagle over Wyandotte County Lake Park, Kansas.

At this time of year there is little waterfowl diversity, so we only saw Canada Goose, and maybe a Mallard. A female Red-breasted Merganser did put in a distant appearance as we were crossing the dam.

Red-breasted Merganser female, from the dam at Wyandotte County Lake Park, Kansas.

Lapping the lake via the roads, we pulled into one viewpoint to find a Raccoon happily dining on what was probably birdseed, put out by someone to attract avian friends into view, where they could photograph from their vehicle.

Raccoon enjoying lunch at Wyandotte County Lake Park, Kansas.

Weston Bend State Park, across the river in Missouri, is another must for local birders. The “problem” this year was that the tree canopy was already so dense that seeing birds was exceedingly difficult. We’ve had a warm, periodically wet spring, and plants of all kinds have flourished.

Camera-shy Carolina Wren in the bottomlands of Weston Bend State Park, Missouri.

Rather disappointed by our visit to Weston Bend, we came home to the delight of a male Rose-breasted Grosbeak dining at our backyard feeder here in Leavenworth, Kansas. It figures. LOL! A Lincoln’s Sparrow has made itself a regular in the back yard, too. It is still there as I write this on May 8.

The male Rose-breasted Grosbeak at our backyard feeder in Leavenworth, Kansas.

We may be the Eastern Gray Squirrel capital of the country, too. The number of squirrels per capita has got to be pretty great. At any one time we can have two to four squirrels or more in the back yard, with more running up and down the giant Pin Oak in the front yard.

Eastern Gray Squirrel in the neighbor's yard, Leavenworth, Kansas.

A new mammal for our back yard has been a Hispid Cotton Rat that alternates between hideouts in the log and brush pile, and the back of our water feature, stones framing a forty gallon prefab pond.

Hispid Cotton Rat sneaking some birdseed in our back yard in Leavenworth, Kansas.

No snakes this year, but Heidi did see a Common Five-lined Skink in Wyandotte County Lake Park. By the time I reached the location, it had disappeared, as skinks tend to do.

Heidi's photo of the Common Five-lined Skink, Wyandotte County Lake Park, Kansas.

We had better luck with turtles. Two different logs at Wyandotte County Lake hosted two different kinds of turtles. The usual pond sliders occupied one log, but River Cooters were on the other. Thanks go to Travis Taggart for the identifications on iNaturalist.

River Cooter turtles on a log in Wyandotte County Lake Park, Kansas.

Amphibians included the abundant Blanchard’s Cricket Frog. I also spotted an American Bullfrog in a stream, from the bridge going over it.

Blanchard's Cricket Frog at the edge of Sportsfield Park in Leavenworth, Kansas.

American Bullfrog in creek, from a bridge in Leavenworth, Kansas.

We walked the Leavenworth Landing Park along the banks of the Missouri for our final outing of the City Nature Challenge, and Heidi spotted many great birds.

Clay-colored Sparrow at Leavenworth Landing Park, Kansas.

Harris's Sparrow at Leavenworth Landing Park, Kansas.

Heidi also noticed a Gray Treefrog sitting on an open gate where the walking path goes under a railroad trestle. Had I even seen the animal at all, I would have dismissed it as some kind of gross trash discarded by a human. Wow. Camouflage in plain sight.

Gray Treefrog at Leavenworth Landing Park, Kansas.

As we exited the waterfront park, we noted Chimney Swifts flying overhead, and two Western Kingbirds on utility wires. It was a pleasant ending to another great City Nature Challenge.

Western Kingbird, downtown Leavenworth, Kansas.

You can find all of my observations for the challenge at this link on iNaturalist. Heidi’s observations, with much better images, are here. Please share links to your own observations in the comments. We love to see what you are finding!

Chimney Swifts over downtown Leavenworth, Kansas.

2025 City Nature Challenge Recap for Kansas City Metro (Vertebrates and Plants)

The City Nature Challenge is an annual event that I always look forward to, when I have no conflicting engagements. I tend to plan around it, in fact. This year’s edition was held from Friday, April 27, through Monday, April 30.

Prothonotary Warbler at Wyandotte County Lake Park, Kansas.

Some background is in order for those unfamiliar with this urban bioblitz. What began in 2016 as a friendly challenge between the California cities of San Francisco and Los Angeles has blossomed into a global project. The intent is to generate public interest in native urban flora and fauna, document as many species as possible during the event period, and build a database useful for assessing environmental trends both locally and globally.

A young Common Five-lined Skink under a chunk of wood, Wyandotte County Lake Park.

Here in Kansas City, I am fortunate that the official map area includes counties a fair distance from the city. It is mostly rural in Leavenworth County, Kansas, where we live, but the town itself is at least suburban. Heidi and I usually travel to other areas, too, like Wyandotte County, Kansas, and Platte County, Missouri.

Louisiana Waterthrush at Weston Bend State Park, Missouri.

The weather this year was less than optimal, overcast virtually the entire time, cool temperatures in the low sixties (Fahrenheit), and occasional rain. Perhaps that is why public engagement was low. The stats are still coming in to iNaturalist, the web platform that hosts the observations for the event, but we had less than 300 people who contributed sightings. As a percentage of the human population, that is pretty dismal.

Blooming Mayapple in Havens Park, Leavenworth, Kansas.

Still, there is a current total of 3,744 observatios of 1,084 species (however iNaturalist defines that term, and it probably varies by taxon). Help in identifying observations has come from 349 individuals, from all over the globe. The border of Kansas and Missouri represents the eastern fringe of the Great Plains meeting the western edge of the eastern deciduous forest, so we have some diverse and interesting habitats.

Virginia Springbeauty, Weston Bend State Park, Missouri.

Personally, given the inclement weather, I looked at plants more heavily than I usually do. It helped that I now have an iPhone that takes photos which are comparable in quality to those produced by my Canon PowerShot SX70 camera. I think it performs better than the camera in some instances.

Blue Phlox, Wyandotte County Lake Park, Kansas.

When Heidi and I went out together, we focused on birds. This was especially true at Wyandotte County Lake Park in Kansas, and at Weston Bend State Park in Missouri. Both parks are heavily forested, with a large reservoir at one, and small streams running through the other.

A flock of six female Red-breasted Mergansers was a wonderful surprise at Wyandotte County Lake Park.

I don’t like that the City Nature Challenge brings out my competitive nature, but I feel compelled to demonstrate to other local citizens that insects and spiders are worth looking at. Consequently, I had the most observations for the Greater Kansas City Metro Area, and the second highest species tally. You can find the results for everyone at this link.

Swainson's Thrush at Wyandotte County Lake Park.

It is a good thing that the nature challenge was not a week later. I went back to Havens Park here in Leavenworth yesterday, May 5, to find that a new gravel road had been laid, right through a small, ephemeral wetland, and over glade habitat at the top of the park. I am devastated and angry. Rumor has it that it will eventually be another paved trail for cyclists, dog walkers, and others. I am all for accessibility, when it does not compromise ecosystems. I don’t know that I will go back to the park now, but there is nothing similar within walking distance of our home (I don’t ride a bike, nor drive any longer, and we only have one car anyway). Pretty much everything else here is lawns.

A male Summer Tanager, Havens Park, Leavenworth, Kansas.

One thing that appears sorely lacking for the City Nature Challenge is widespread publicity. There is a wonderful team of individuals at the Los Angeles County Museum of Natural History that organizes the event each year, but they can only do so much. They have to register cities, for example, which is a demanding chore all by itself. It is up to the individual metropolitan areas to do their own marketing.

A male Northern Parula at Wyandotte County Lake Park, Kansas.

Did you participate this year? Have you done so in years past? Please feel free to share your experiences in the comments. Meanwhile, you can find my insect and spider observations from City Nature Challenge over on my Bug Eric blog.

Lessons From The City Nature Challenge

This year, Colorado Springs joined the ranks of those metropolitan areas participating in the fourth annual City Nature Challenge, which started in 2016 as a contest between Los Angeles and San Francisco to see which city could find the most species of wild organisms inside their municipal boundaries. Today it is a global event.

Blue Jay spotted during City Nature Challenge

Why The Nature Challenge Matters

Professional scientists cannot be everywhere at once, so "citizen scientists" are needed to help understand if animal and plant populations are healthy or declining. Unless an organism has an economic impact, positive or negative, chances are we know very little about it. We do not even know all the geographic areas certain species are found in. Your observations are critical and valuable.

Buttercup

Logistics of the City Nature Challenge

The City Nature Challenge is recorded on iNaturalist, an online platform that also has a smart phone app. Participants register on iNaturalist for free, look for their town's City Nature Challenge project, and subscribe to it. Observations of wild organisms (no people, pets, livestock, or cultivated plants, please) taken with phone or camera are then uploaded to the project. Observations are made in a four-day window, Friday through Monday. After that, you can still upload any observations made during that period, but most of that following week is devoted to identifying the animals, plants, fungi, and other living things already uploaded. City "winners" at the end of the project include most participants, most observations, and most species seen.

Black Swallowtail female

Limits and Pitfalls

At one point, the home page for iNaturalist gave the following disclaimer:

"iNaturalist had record levels of activity this week due to the City Nature Challenge, so notifications of activity such as identifications and comments are delayed. You may receive notifications out of sequence as we work through the backlog as quickly as possible. We apologize for the inconvenience and thank you for your patience."

That the website did not crash completely is a testament to its server capacity. This aspect of the City Nature Challenge seems to be in good order. Other problems remain, however.

1. Participation. Recruiting people willing to make more than a casual effort, if that, appears to be the greatest shortcoming of the City Nature Challenge. Here in Colorado Springs, we maybe had one brief announcement on a television newscast. We had a total of 142 participants, many of them "accidental," in a city of roughly 800,000 people.
2. Automatic suggestions for identification. iNaturalist has image recognition software that will "suggest" a species, family, order, or other level of taxonomy for the image you post. These suggestions are often wildly inaccurate and lead people to identify a North American insect as something from Africa, for example. Users should ignore this feature and instead assign the most obvious level of recognition, such as "grasshopper."
3. Little or no crossover with other apps. One thing my wife and I noticed was a lack of birders making observations for City Nature Challenge. The avian-inclined prefer the app e-Bird. There is no excuse for not having e-Bird observations during the City Nature Challenge export automatically to iNaturalist. The technology is surely there. Likewise, other apps should be compatible with iNaturalist, at least for bioblitzes and the City Nature Challenge.

Many-lined Skink

Have a Plan of Attack

One thing I personally learned was that it would help to have a plan of attack, or at least a "plan B" if the weather is uncooperative. What can you count on for observations? Bird nests? Insect galls? Mealybugs on the houseplants? You would be surprised by the biodiversity indoors, in your basement, garage, or tool shed. Make a list to remind yourself of those places you can look, or species you know can be found reliably at a given location.

Yellow-rumped Warbler

Beyond The City Nature Challenge

If this is the first you have heard of City Nature Challenge, no worries. See if your city participated this year. No? Contact your parks department, local museum, or nature center and ask that they initiate an effort for next year. Meanwhile, you might want to make a habit of participating in other citizen science projects through iNaturalist and similar portals like Project Noah. You will make friends, learn much, and contribute positively to our understanding of planet Earth in the process. The idea that nature-watching can be a social activity is slowly catching on, and that common, widespread interest is what will ultimately protect and restore wild places.

Gilled fungi on a tree