Latest / Street Smart Naturalist / Coyote vs Seattle
Transcript
- 0:01SPEAKER_00: Greetings,
- 0:02SPEAKER_00: this is David B.
- 0:03SPEAKER_00: Williams and the podcast of my newsletter,
- 0:06SPEAKER_00: The Street Smart Naturalist, Explorations of the Urban Kind.
- 0:11SPEAKER_00: Every week I share my observations and adventures with the human
- 0:15SPEAKER_00: and natural world around Seattle, Puget Sound, and the Pacific Northwest.
- 0:21SPEAKER_00: Today's episode returns to coyotes in Seattle.
- 0:25SPEAKER_00: To learn more about my work,
- 0:26SPEAKER_00: including my new book,
- 0:28SPEAKER_00: In the Range of Fire and Ice,
- 0:30SPEAKER_00: A Human,
- 0:30SPEAKER_00: and Natural History of Washington's Cascades,
- 0:33SPEAKER_00: please go to my website, geologywriter.com.
- 0:37SPEAKER_00: You'll also find a link to my Substack newsletter and my previous five and
- 0:41SPEAKER_00: a half years of newsletters, as well as images tied to this week's episode.
- 0:47SPEAKER_00: Thanks again for joining me on this adventure,
- 0:49SPEAKER_00: and welcome to Podcast 93 of the Street Smart Naturalist,
- 0:55SPEAKER_00: Coyote vs. Seattle, September 24, 2026.
- 1:02SPEAKER_00: Alas for coyotes, they face one serious issue in Seattle.
- 1:07SPEAKER_00: No roadrunners grace the wilds of my fair city.
- 1:11SPEAKER_00: But perhaps this may be a saving grace.
- 1:13SPEAKER_00: Instead of focusing their formidable skills on the pursuit of
- 1:17SPEAKER_00: the legendary avian predator,
- 1:20SPEAKER_00: God's dog, as some call coyotes, can concentrate on more suitable prey.
- 1:27SPEAKER_00: A recently published study based on 687 coyote scats collected
- 1:32SPEAKER_00: from Seattle parks found that coyotes rarely caught birds,
- 1:37SPEAKER_00: Roadrunner or otherwise, and instead focused on fruit and small critters.
- 1:44SPEAKER_00: Samantha Kreling,
- 1:45SPEAKER_00: lead author of the study in the September 2026 issue of People and Nature,
- 1:50SPEAKER_00: and her colleagues discovered that the most frequently eaten items in
- 1:55SPEAKER_00: a Seattle coyote's diet were apples, plums,
- 1:58SPEAKER_00: and cherries,
- 1:59SPEAKER_00: rabbits,
- 2:00SPEAKER_00: non-native,
- 2:02SPEAKER_00: here due to our propensity to let former pets out in the city,
- 2:06SPEAKER_00: chickens,
- 2:07SPEAKER_00: from chicken found in garbage and not backyard chickens, cats,
- 2:11SPEAKER_00: Though the latter is likely overestimated by the methods used as
- 2:17SPEAKER_00: the same cat will often be detected multiple times, mice and rats.
- 2:23SPEAKER_00: The key, noted Sam, was that coyotes exploited our habits.
- 2:27SPEAKER_00: Quote, If trash is unsecured,
- 2:32SPEAKER_00: compost is open,
- 2:33SPEAKER_00: and picnic sites or the like are not cleaned up,
- 2:37SPEAKER_00: urban wildlife, including coyotes, capitalize on them, she said.
- 2:42SPEAKER_00: In total, coyotes ate food from 65 families, 24 plant and 41 vertebrate.
- 2:50SPEAKER_00: As Sam told me, coyotes are incredibly opportunistic.
- 2:56SPEAKER_00: If an easy meal becomes available, they will take it.
- 2:59SPEAKER_00: For example,
- 3:00SPEAKER_00: illegal dumping leads to coyotes taking pest rodents and human-generated food such
- 3:05SPEAKER_00: as chicken, pigs,
- 3:07SPEAKER_00: and cow,
- 3:08SPEAKER_00: whereas population density results in greater consumption of garden fruit as well
- 3:14SPEAKER_00: as rodents.
- 3:15SPEAKER_00: The study further found that greener areas
- 3:18SPEAKER_00: with more tree canopy cover support less diverse,
- 3:23SPEAKER_00: non-anthropogenic diets and that in areas of lower household income and less Not
- 3:35SPEAKER_00: that we will be able to control what a wily animal like a coyote eats,
- 3:40SPEAKER_00: but we can at least be better neighbors as well as more tolerant.
- 3:45SPEAKER_00: Coyotes probably help to control rodent populations,
- 3:48SPEAKER_00: particularly in areas rife with illegal dumping.
- 3:51SPEAKER_00: They also spread seeds of native plants
- 3:53SPEAKER_00: and reduce those often despised vegetable garden pests, rabbits.
- 3:59SPEAKER_00: Nor are coyotes marauding carnivores, only eating our precious cats and dogs.
- 4:05SPEAKER_00: They may pick off the occasional pet, but rarely ones on leash or in fenced yards.
- 4:12SPEAKER_00: Sam was also involved in another study of coyotes in Seattle.
- 4:16SPEAKER_00: Using SCAD again,
- 4:18SPEAKER_00: she and her colleagues at the School of Environmental and Forest Sciences at
- 4:23SPEAKER_00: the University of Washington compared coyote populations in rural
- 4:28SPEAKER_00: and urban settings.
- 4:30SPEAKER_00: Amazingly,
- 4:31SPEAKER_00: Seattle has a population density nine times greater than found in wilder
- 4:37SPEAKER_00: and rural settings.
- 4:39SPEAKER_00: Estimated density in Seattle was 0.98 per square mile, or around 83 coyotes within city limits.
- 4:49SPEAKER_00: That might surprise people who think of coyotes as afraid of humans,
- 4:53SPEAKER_00: but I think it just shows how ideal the urban setting is for coyotes,
- 4:57SPEAKER_00: said Laura Pru, lead author of the study in Environmental Research, Ecology.
- 5:03SPEAKER_00: Of particular interest is what affects coyote numbers and what doesn't affect them.
- 5:09SPEAKER_00: Researchers had hypothesized that the luxury effect,
- 5:13SPEAKER_00: with wealthier neighborhoods having more tree cover and biodiversity,
- 5:18SPEAKER_00: might lead to greater coyote density, but this was not the case.
- 5:22SPEAKER_00: Conversely,
- 5:23SPEAKER_00: impervious surfaces and pollution,
- 5:26SPEAKER_00: which tend to lead to more dead coyotes, didn't reduce the density.
- 5:31SPEAKER_00: Human population density was the only factor that significantly influenced coyote density.
- 5:38SPEAKER_00: More people equals fewer coyotes.
- 5:41SPEAKER_00: So why are there more coyotes in Seattle than in rural and wilder parts of the state?
- 5:47SPEAKER_00: Urban coyotes benefit in several ways, in particular the absence of two primary means of death.
- 5:55SPEAKER_00: A coyote May have a greater chance of being killed by a vehicle in Seattle than in
- 6:01SPEAKER_00: a rural counterpart, but that same coyote isn't going to be shot or caught.
- 6:07SPEAKER_00: Our species has long been instrumental in controlling,
- 6:10SPEAKER_00: or at least attempting to control, coyote populations via hunting and traveling.
- 6:16SPEAKER_00: Trapping.
- 6:18SPEAKER_00: A review study of 31 studies estimated that an urban coyote had
- 6:22SPEAKER_00: a 41% greater annual survival compared to one in rural or natural areas.
- 6:29SPEAKER_00: By the way, humans caused 77% of deaths across all studies.
- 6:36SPEAKER_00: Food, either finding it or not being it, also contributes to the success of urban coyotes.
- 6:43SPEAKER_00: Sam's study showed that the cityscape led to dietary diversity twice
- 6:48SPEAKER_00: as high compared to wilder locations.
- 6:51SPEAKER_00: Plus, the absence of predators such as wolves and mountain lions meant
- 6:55SPEAKER_00: that coyotes were rarely eaten by anyone.
- 6:58SPEAKER_00: Without these big competitors,
- 7:01SPEAKER_00: coyotes are in essence the top dog and more able to exploit a wide variety
- 7:06SPEAKER_00: of food resources.
- 7:08SPEAKER_00: One part of the coyote story that the scientists Do not know is
- 7:13SPEAKER_00: the long-term population dynamics in Seattle.
- 7:16SPEAKER_00: With just a single year,
- 7:18SPEAKER_00: single season estimate,
- 7:20SPEAKER_00: researchers cannot generalize if the number of coyotes in Seattle is growing
- 7:25SPEAKER_00: or stabilized.
- 7:27SPEAKER_00: Also uncertain is if their numbers trend with bunny abundance, as happens in many natural areas.
- 7:34SPEAKER_00: Sam told me that it's hard to predict what will happen here.
- 7:38SPEAKER_00: Coyotes are relative newcomers, A rival unknown, but perhaps in the 1920s or 30s.
- 7:44SPEAKER_00: They tend to have larger litters in cities and have plenty of food and few means of death.
- 7:51SPEAKER_00: So their population has the potential to continue to grow.
- 7:55SPEAKER_00: But that is speculation and not fact.
- 7:59SPEAKER_00: She also stressed that Seattle has a lot fewer coyotes than other urban environments.
- 8:05SPEAKER_00: The reason is tolerance or intolerance.
- 8:09SPEAKER_00: We human residents are generally receptive to coyotes,
- 8:13SPEAKER_00: but not when a coyote acts in a manner we do not like,
- 8:16SPEAKER_00: such as bothering our pets and eating garbage.
- 8:20SPEAKER_00: We are incredibly fortunate that coyotes grace Seattle,
- 8:25SPEAKER_00: even without access to Acme products or Roadrunners.
- 8:28SPEAKER_00: But if we want to keep it that way,
- 8:30SPEAKER_00: we may want to become a bit more proactive in how we manage our pets
- 8:34SPEAKER_00: and our garbage, as well as be more tolerant of such wildness in our midst.
- 8:41SPEAKER_00: Once again,
- 8:41SPEAKER_00: this is David B.
- 8:42SPEAKER_00: Williams,
- 8:43SPEAKER_00: author and voice of The Street Smart Naturalist,
- 8:46SPEAKER_00: Explorations of the Urban Kind,
- 8:49SPEAKER_00: a weekly newsletter and podcast focusing on the human
- 8:52SPEAKER_00: and natural world around Seattle, Puget Sound, and the Pacific Northwest.
- 8:57SPEAKER_00: If you'd like more details about my walks, talks,
- 8:59SPEAKER_00: and books,
- 9:00SPEAKER_00: including In the Range of Fire and Ice,
- 9:02SPEAKER_00: along with a link to sign up for my newsletter and podcast,
- 9:05SPEAKER_00: check out my website, geologywriter.com.
- 9:08SPEAKER_00: And don't forget to slow down, pay attention, and enjoy the world around you.