Coming in 2027. Howl: What Yellowstone’s Wolves Reveal About Language, Dogs, and Our Wild Selves, by Jeffrey T Reed. Published by Little, Brown (Hachette Book Group) in the USA, August 2027.

What does the howl mean?

Most of us hear the wild itself: unfenced country, cold distance, a voice from beyond the firelight. But in Yellowstone, after over 300,000 hours of recorded wolf voices, a deeper story begins to rise from the dark.

Into that mystery walks 907F, Yellowstone’s legendary one-eyed matriarch: survivor, mother, hunter, and queen of Slough Creek. Her life, from her first days in the Lamar Valley to her final winter on the northern range, becomes the thread that leads us into the hidden acoustic world of wolves. It is also the story of her family, the Junctions, and their blood rivals, the Rescue Creek pack. Their feud over territory, bloodline, and survival is told not only in our words, but in theirs, through the recorded voices of wild wolves themselves.

At its heart, this book is about language and what it means to communicate: not the kind written in ink, but the kind carried in air. With autonomous recording units, field observation, and artificial intelligence, Jeff Reed listens into a world human ears have mostly missed. AI helps find the voices hidden in years of wind, rivers, ravens, engines, and snow. But the machine is not the point. The point is listening, the oldest technology we have, and one we have nearly forgotten how to use.

A book to listen to

This is not only a book to read. It is a book to listen to.

You will hear real wolves: howls, barks, growls, whines, pup voices, and chorus howls. A howl can carry identity across miles. A bark can turn a body toward danger. A growl can stop violence before it begins. A whine can repair a bond. A chorus can make a pack audible as one animal.

Howl is part memoir, part science, and part elegy for the last wild places. It is about wolves. But it is also about the dogs who share our homes, the fragile line between wild and domesticated, and the older self beneath the managed one.

In learning to hear wolves, we are forced to confront a larger loss: the thinning of wild voices around us, and the dulling of our own attention. Wolves returned to Yellowstone and brought back the wild, not as an idea, but as a living presence with teeth, hunger, family, territory, grief, and song. Listening to them may help restore something in us as well: the part that still longs for freedom, sharp attention, honest speech, necessary silence, and a voice used with purpose in a world drowning in noise.

The iconic sound of a wolf pack’s chorus howl reverberating across the Yellowstone landscape is as impactful as seeing the wolves themselves.

— Dr. Dan Stahler

About the author

A feral linguist raised in the mountains of Montana, Jeffrey Reed tracks meaning through howls in the wild, and code in the cloud. He lives where stories still have teeth, near Yellowstone National Park. He questions everything, from ancient alphabets to modern AI, and does it with rigor sharpened by a PhD, three decades in tech, and a lifetime of wilderness grit. Jeff helped found The Cry Wolf Project, one of the largest bioacoustics studies of wolves in the world. After 30 years in the technology industry, he co-founded Grizzly Systems, the Ring doorbell for the outdoors. He also co-founded the Wild Livelihoods Business Coalition, a business movement to protect wild places, not just for today, but for generations to come. He lives with his amazing wife, Robin, and three talkative dogs, Ozzie, Huck and Shiloh, on their farm in southwest Montana.

Sounds and video from the book

The recordings below are the wild wolf voices you will hear in the book, in the order they appear. You can also watch them as a playlist on YouTube.

Watch

  • Echo Howl

  • Ode to Howl

  • Dictionary of Wolf Sounds

  • Mollie's pack and Junction Butte pack meetup in Yellowstone National Park

  • Mating and Separation Wolf Howls

  • Breeding Season Howls

  • Growls and Snarls

  • Wolf Whines and Growls at Carcass

  • Wolf Whistle-Whimper

  • Wolf Chorus Howl

  • Elk falls off cliff avoiding a wolf pack

  • 50 Variations of Wolf Howls

  • Wild Sounds at a Wolf Den Site in Yellowstone National Park (Summer 2024)

  • Sounds at Slough Creek Bison Carcass

  • How to Interpret a Spectrogram

  • Four Different Wolf Pack Chorus Howls

  • Rescue Creek Wolf Pups Chorus Howling with Mom (1490F)

  • Wolf Pups Howling at Adult Packmates

  • Stacato howl by 1490F (Rescue Creek pack) with her pups in response to a distant chorus howl.

  • Raven Kaw

  • Raven "Food" Call

  • Howling at a chopper

  • Prospect Peak pack wolf howling

  • Wolf 302M

  • Long Duration Howl

  • Short Duration Wolf Howl

  • Wolf 1479F Alarm Woof-Howling

  • Downdrifting in a wolf howl sequence

  • Two Types of Wolf Howls

  • Modulated howl followed by two flatter howls...a common pattern in wolf vocalizations.

  • Mating Howl?

  • 1996 Recording of Yellowstone Wolves Howling

  • Six step howl

  • Four step howl

  • Falling then rising howl

  • Two step howl

  • Slowly rising howl

  • Upside Down Howl

  • Multiple howls descending

  • Rising Then Falling Howl

  • Ascending howl

  • Wavy Howl in Winter 2023 by 1386F of Junction Butte Pack

  • Why Howl?

  • Growl Howl

  • Elk Running

  • Coyote bark howling at 907F

  • Raven Meat Call

  • A Wolf with a Cold?

  • Grizzly Bear

  • 100 Birds of Yellowstone

  • Howl Harmony

  • Close Range Howl

  • Cougar Vocallizations

  • Airplane

  • Italian vs Yellowstone Wolf Howls

  • Adagio for Strings in F Minor

  • Formants in Wolf Vocalizations

  • Upside Down Howl at Den

  • Three Types of Wolf Barks

  • Three Types of Wolf Barks Slowed Down

  • Wolf 926F Howling

  • Very low pitch wolf howl

  • Yellowstone Ranger Siren

  • Mother Wolf and Pup Howl

  • Bison Rut Sounds in Yellowstone

  • Combative Barks

  • The barks of a wolf, coyote and dog compared

  • Chickadees and Nuthatches Mobbing a Great Horned Owl

  • Competitive Barks

  • Shrimp Lake pack wolf barking at Junction Butte pack

  • Hesitant Bark (aka Woof) directed at a human

  • Hesitant wolf bark at humans

  • Rescue Creek Chorus Howl I

  • Rescue Creek Chorus Howl II

  • Junction Butte pack responding to Rescue Creek chorus howl

  • Wolf Sounds at a Bison Carcass

  • Wolf 1393 howling

  • 907F Pregnancy Howl?

  • Junction Butte Puppy Vocalizations

  • Dominance pulsing growl

  • Pulsing growls from wolf pups

  • Teeth clacking

  • Wolf Whimpers, Whines, Yelps and Moans

  • Wolf Whistle Whimper

  • Whimper Moan

  • Wolf Whine

  • Pulsed Growls, Yelp and Moans

  • Moan

  • Moan Growl

  • Laughing Yelp

  • One word bark

  • Snipped of a Rescue Creek pack chorus howl

  • Woa Howls

  • Yip-yaps in a Chorus Howl

  • Bark-howl

  • Growl Howl

  • Wolves from the 1995 Yellowstone Re-introduction

  • Intensity Differences in the Harmonics of Three Different Wolves' Howls

  • Odie

  • 907 Howling

  • Discontinuous Howl from a Rescue Creek Pack wolf

  • 50 Howls at the Same Time

  • Sperm Whale Clicks

  • Harmonic Growl

  • Wolf Whimper

  • Whimper Howl

  • Regurgitation Sound

  • Unknown Sound by Wolf Pups Playing

  • Wolf Talk

  • Wolf Pup Yawning

  • Raised leg urination by alpha male

  • Distant Howl followed by Chorus Howl

  • Siren Responded to by Coyote and Wolf

  • Close Range "Chewbacca" Howls and Moans

  • Hounds Baying and Barking in Pursuit of a Mountain Lion

  • Grizzly Bear Roars

  • Italian vs American Wolf Chorus Howls

  • Ozzie, 907F and I

  • Wolf 302

  • Howl

  • 907F and Two Pups

  • Lone howl near the Junction Butte den area

  • 907's Final Howls?

  • Wolf 1513F Swimming the Yellowstone

  • 1513F Running

  • Mortality Signal

  • Bliss Pass Pack Chorus Howl

  • 1507F Howl

  • Yellowstone Canyon

  • Rescue Creek Wolf Pack Chorus Howl

  • 907F

  • The "Ding" Sound Illusion

  • 18 Days

  • 907 Disappearing into the Dark

  • Harmonic Shifts in Wolf Howls

  • Wavy Howl

  • Three Types of Wolf Barks

  • Sounds of the Yellowstone Bison Rut

  • After 70 years of silence...

  • Rescue Creek New Years Day Chorus Howl

  • Using AI to Study Wolves in Yellowstone

  • Jeff and Ozzie

  • 907, protecting a pup, with an escalating vocal warning at a Junction Butte packmate

  • 907's Last Chorus Howl

  • A Pregnant Wolf Howl

  • 1513 of the Rescue Creek Pack participates in a chorus howl the night before 907's death

  • 907 Tree

  • Two Wolves Bark-Howling

  • 1090F Woof Bark at Junction Butte Pack

907F howling on a snowy ridge, with a spectrogram of a howl laid over the picture. Labels mark duration across the top, frequency up the side, and amplitude as the brightness of the lines.
A howl seen as a spectrogram: duration runs left to right, frequency rises from bottom to top, and brighter lines are louder. Photo: Evan Stout.

Sources

  1. Drawing at the top of the page: Dale Marie Muller