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Urban wildlife on the rise

As cities grow, more species are adapting to living in urban setting.
Peregrine falcons are a "very charismatic species," ASU prof says.
Falcon cam is most popular spot on Arizona Game and Fish website.
ASU researchers: Why some species thrive in cities, others don't is a mystery.
March 23, 2016

Peregrine falcons nesting in downtown Phoenix a part of a growing trend of animals adapting to, living in our expanding cities

Downtown Phoenix’s newest high-rise residents don’t take the elevator when they come home.

A pair of peregrine falcons has made a home in a nesting box atop the Maricopa County Administration Building, becoming Internet stars (thanks to a webcam), capturing the public imagination and terrorizing the pigeon population.

The feathered bullets are part of a growing trend of urban wildlife throughout the world that includes coyotes in Manhattan (and Phoenix, and Los Angeles, and ...), wild boar in Berlin, leopards in Mumbai and Nairobi, and foxes in London. More coyotes live in Tucson than in adjacent wilderness areas.

There are field guides to urban wildlife for sale on Amazon, academic conferences, and advocacy groups. The U.S. Fish and Wildlife Service’s National Wildlife Refuge System boasts 101 urban wildlife refuges around the country.

“It’s a very robust part of nature,” said Randy Babb, wildlife viewing program coordinator with the Arizona Game and Fish Department.

Whole generations of animals now have lived only in urban areas, Babb said.

“Things like coyotes and javelina, like that — we now have animals that are living within the confines of the urban area,” he said. “Those animals live their whole lives there. They’re living in culverts and flood-control structures. They feed on people’s pets, things people leave out, gardens. There is a very significant urban wildlife situation here in Arizona.”

A coyote.

More coyotes live in Tucson than in
adjacent wilderness areas, according
to Randy Babb of Arizona Game and Fish.

Photo by Christopher Bruno/

Pierre Deviche, ornithologist and professor in Arizona State University’s School of Life SciencesThe School of Life Sciences is an academic unit of the College of Liberal Arts and Sciences., went to an urban wildlife conference last year in Chicago attended by 200 researchers.

“You have more and more people living in cities, and cities are becoming enormous,” Deviche said. “I think more and more people are becoming exposed to wildlife living in cities, and you’ve got to deal with it.”

David Pearson, ornithologist and research professorPearson is also a senior sustainability scientist in the Julie Ann Wrigley Global Institute of Sustainability. in ASU's School of Life Sciences, said as humans invade more and more of the world, a lot of organisms beside cockroaches and rats are evolving to co-exist with us.

“It’s a nice way to look at the future,” said Pearson, who has a grey fox living on his roof in Tempe. “As we approach 12 billion people in the world, there are going to be a lot of changes.

“Sadly many organisms will go extinct, but a few organisms you wouldn’t expect are going to be able to adapt and evolve and live side by side with us. There are coyotes in downtown Los Angeles, downtown Chicago. They are super well-adapted for being sneaky and adapting and in some ways maybe benefiting us by the things they’re going after, like rats. The world is going to be very different.”

He cited the Eastern coyote, which has evolved in the past few decades into almost another species. Some of its genes are dog and wolf. It’s much larger than its Western counterpart, hunts in packs and doesn’t have much fear of humans. The big question is what species will thrive and what won’t, Pearson said.

“You can’t expect the organisms to just sit back and adapt to whatever we do to them,” he said.

There are falcon cams in Boise, Idaho; Buffalo, New York; Columbus, Ohio; seven in Minnesota; and nine in Chicago and its suburbs. The peregrine is the official city bird of Chicago. In cooperation with Maricopa County, Game and Fish was able to install a camera to monitor the birds nesting on top of the downtown Phoenix building, which is at Third Avenue and Jefferson Street.

Peregrine falcons have actually been nesting in downtown Phoenix — the Maricopa County Administration Building in particular — for more than a decade, according to Babb.

“(The webcam) is the most popular spot on our website right now,” he said.

A screenshot from a webcam of a peregrine falcon.

The male of the pair of peregrine falcons is shown in a screenshot from the Arizona Game and Fish Department’s webcam. The male is about one-third smaller and has whiter chest plumage compared with the tawny breast of the female (seen in the top photo).

The term “falcon” refers to a female. The male is called a tiercel, which comes from a German word for “one-third,” because the male is one-third smaller than the female. Peregrines have very large feet in comparison to the rest of their body, which helps them to capture and hold prey in mid-flight.

They dive at about 200 miles per hour. They are the fastest animal on Earth and have been recorded diving at up to 242 miles per hour. F-16 pilots have reported the birds passing them in dives. They hit prey in mid-air, usually killing it instantly.

Peregrines mostly eat pigeons. “It’s an easy source of food for them,” Deviche said.

The female is in the downtown Phoenix box much more than the male. When the male shows up — sometimes with prey, sometimes not — he flattens his wings against the bottom of the box and they knock beaks together and keen at each other.

“I can’t honestly say I speak peregrine,” Babb said. “They do a variety of different bonding and courtship behaviors. You’ll see them call to teach other. They’ll fly in and do beak-clacking when they knock their beaks together. Most of that stuff is just bonding behaviors. ... Most of these things are pretty well documented in literature, but you never get to see it.”

Being able to watch the birds is rare and a huge draw even for people who normally wouldn’t look away from their phones.

 “It’s a very charismatic species, and even non-bird-watchers and people who otherwise wouldn’t have a second glance at the wildlife around them find them very interesting,” Pearson said.

“I think it’s something people really appreciate,” Deviche said. “You can be at home and see these birds right there.”

“As we approach 12 billion people in the world, there are going to be a lot of changes. ... There are coyotes in downtown Los Angeles, downtown Chicago. They are super well-adapted for being sneaky and adapting and in some ways maybe benefiting us by the things they’re going after, like rats. The world is going to be very different.”
— ASU research professor David Pearson

Peregrine falcons have been living in cities for a while. Until the pesticide DDT was banned in 1970s, many bird populations crashed. (The chemical made eggshells perilously thin.)

“The bald eagles, a whole bunch of birds’ populations were crashing,” Deviche said. “After that, they rebounded. People have been seeing them much more, and they’re becoming much more common. They used to be really rare.”

Deviche has seen them on the Tempe campus occasionally, sometimes on top of the Biodesign building. Pearson said some used to nest atop the roof of (appropriately enough) Life Sciences Tower E-Wing. Peregrines like high places. Why did this particular pair choose the box on the county admin building?

“You would have to ask the bird,” Deviche said. “Traditionally these falcons nest on cliffs. High-rises, big buildings in cities are surrogates.”

Peregrines aren’t the only winter visitors. Cooper’s hawks spend the winter here in town. Red-tailed hawks are common along the Salt River. American kestrels like Phoenix, too.

“We’ve got multiple birds of prey around here,” Deviche said. “Phoenix is a good place for these birds. We’ve got lots of parks and green spaces. They can find food and things like that pretty easily.”

It’s a mystery why some species do well in urban settings and others don’t, Pearson said. 

“Why do some birds — native desert birds — do so well in urban situations?” he said. “It’s really hard to figure out what it is that all these birds have in common. Cactus wren, Abert’s towhee, the curve-billed thrasher — why do they all do so well in urban situations?”

Cactus wren do very well in the Valley, but not at all in San Diego, he said. No one knows why.

Meanwhile, thousands of Phoenicians keep checking in online to see whether the downtown falcons produce young in their new home.

If the birds raise a family in there, “you can see them getting bigger and bigger, and one day flying away,” Deviche said. “That is what we can hope for.”

Top image: The female of the pair of peregrine falcons nesting in the Maricopa County Administration Building in downtown Phoenix, shown in a screenshot from the Arizona Game and Fish webcam, which can be viewed here.

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Playing dirty for a good cause

ASU Oozeball tournament a fun way to spend a day and helps a good cause.
Students make a muddy splash to help raise funds, awareness for United Way.
March 23, 2016

ASU students, alumni unite in Oozeball tournament for charity; player registration deadline is Friday

Next week, a few ASU students and alumni won’t be afraid to get their hands dirty — for a good cause.

April 2 marks the 32nd annual Oozeball tournament, the only game where you can play dirty and still feel good about it.

Sponsored by Arizona State University’s Student Alumni AssociationThe Student Alumni Association is a student-run group, affiliated with the ASU Alumni Association. (SAA), the event, which is essentially a game of mud volleyball, helps support the United Way through a portion of the tournament’s ticket sales and registration fees.

The SAA has strong ties to the United Way, a nonprofit organization that works with local communities to provide fundraising and support for charitable organizations. 

“United Way is a multifaceted organization,” said Nicole Evans, ASU junior and president of the SAA. “There’s not really one single thing they do. They help a wide range of people in a variety of ways, which is really why we’re proud to be affiliated with them.” 

The SAA turned the Oozeball tournament into a charity event a few years back. The student group helps maintain the spirit and traditions of ASU, through such events as the freshman Lantern Walk, whitewashing the A — and of course, the Oozeball tournament.

“I had a student describe it once as the ‘most college thing’ he’s ever done,” said Dan Turbyfill, Oozeball’s lead organizer and special events manager at the ASU Alumni Association. “It’s just a lot of fun coming out to play in the mud.”  

“I first started participating in the Oozeball tournament as a high school student,” Evans said. “My older sister was part of the coordination crew which helps put the event together.”

It was because of the influence of her older sister that Evans decided to seek out her current leadership position with the SAA. Now she gets to orchestrate the game she fell in love with.

“My favorite part of the tournament is definitely getting dirty,” said Evans. “No one is afraid of the mud. People come in costumes to participate in or just to wear while watching the entertainment. People sit in lawn chairs and watch regardless of whether their team is still in the competition.” 

“We have families and community members come by because they hear the music and want to see what’s going on,” she said. “I’d say [the crowd] is a mix between people associated with ASU and people who are just members of the community.” 

people watching students playing mud volleyball from bleachers

Spectators come out to watch the 2014 Oozeball tournament. Photos courtesy of the ASU Alumni Association

According to Tyler Jennings, a co-organizer with the SAA, preparing for event is more extensive than one might think.

The SAA starts prepping for the tournament in January — deciding on general ideas, theme and changes they want to make from the previous year, as well as the location.

Then “it takes about a couple weeks to get the volleyball courts ready,” Jennings said.

To make the mud for the Oozeball courts, workers take dirt out of the ground and put softer dirt back in, then fill all eight of the former volleyball courts with water.

Jennings said the preparations are now in high gear, with the SAA doing marketing for the event and more people signing up.

“We have 15 to 20 people from the Student Alumni Association who do stuff like set up tents, ref the games and help organize the event,” Jennings said.

So how do you play Oozeball exactly? The fine details of the game are different from your garden-variety volleyball. For example, a player may go out of bounds to play a ball, and the ball is still considered good if the player hits it back in. There are no timeouts. Everything is fast-paced to keep you on your toes — but close-toed shoes are required to play.

Teams are made up of six players with four reserves. Matches last up to 30 minutes, and there is a 64-team bracket. First team to 21 points wins, but not so fast: You have to win by two points.

This means games could drag on to the point of exhaustion for the competitors, ensuring only the team with the highest stamina will be victorious. There’s no room for error either, because the tournament is single-round elimination.

This year’s event starts at 9 a.m. April 2 on the Tempe campus.

Registration is $15 per person, and participants can register a team of just them and their friends, or choose to join a team at random to meet new people. Registration closes March 25. Spectators are also welcome to come out and cheer the players on.

For more information and to register for the tournament, visit

Trevor Fay

reporter , Media Relations and Strategic Communicatons