Thunderbird — Giant Pterosaur-Like Flying Cryptid

Overview

There is a photograph that everyone has seen and no one can find. It depicts a enormous winged creature — something between a condor and a pterodactyl — pinned to the side of a barn, with a group of men standing next to it for scale, their faces a mix of triumph and bewilderment. People remember it vividly: the sepia tone, the rough wooden planks, the impossible wingspan. They remember seeing it in a book, a magazine, a documentary. They just can’t seem to locate it again.

This vanishing photograph is the perfect emblem of the Thunderbird — a creature that hovers at the edge of perception, reported by witnesses who seem credible but never quite captured by the evidence. The Thunderbird is among the oldest and most widespread of North American cryptids, rooted in Indigenous mythology that stretches back millennia and refreshed by a steady drip of modern sighting reports. In 1977, one of these birds allegedly tried to carry off a ten-year-old boy in broad daylight in Illinois. The witnesses never recanted. The bird was never identified.

What separates the Thunderbird from typical cryptozoological fare is its cultural depth. This is not a creature invented by internet forums or reality TV producers. It occupies a genuine place in the spiritual traditions of dozens of Indigenous nations, it has generated sighting reports across centuries, and it poses a question that ornithology hasn’t fully settled: how big can a flying bird actually get?

Origins & History

The Mythological Foundation

The Thunderbird is one of the most significant figures in Indigenous North American mythology. Among the Ojibwe, the Thunderbird (Animikii) is a powerful spirit being that creates storms and battles the underwater serpents. The Lakota know it as Wakinyan, a sacred being associated with war and divine power. Pacific Northwest Coast peoples — the Kwakwaka’wakw, Haida, Tlingit, and others — carve the Thunderbird prominently on totem poles, often depicted clutching a whale in its talons.

These are not descriptions of ordinary birds. They are supernatural entities — creators of weather, enforcers of cosmic order, mediators between heaven and earth. Cryptozoologists who attempt to connect these myths to physical sightings are performing a significant interpretive leap, conflating spiritual tradition with zoological claims.

That said, some researchers — notably Mark A. Hall in his book Thunderbirds: America’s Living Legends of Giant Birds — have argued that the myths may preserve cultural memories of actual encounters with very large birds, now extinct or extremely rare. This is speculative but not entirely unreasonable; other Indigenous oral traditions have been found to preserve accurate information about geological events thousands of years in the past.

The Tombstone Thunderbird

One of the most persistent elements of Thunderbird lore is the so-called Tombstone Thunderbird, allegedly killed near Tombstone, Arizona, in 1890. According to the story, two cowboys encountered an enormous flying creature in the desert, shot it, and brought it back to town, where it was photographed nailed to a barn wall. The Tombstone Epitaph newspaper supposedly published the photo.

No one has ever found the article or the photograph. Despite exhaustive searches of the Tombstone Epitaph archives, including microfilm reviews, no such story has been located. Yet the “memory” of the photograph is remarkably widespread — so widespread that it has become a case study in false memory and the Mandela Effect. Researcher Jerome Clark has documented dozens of individuals who independently claim to have seen the photograph, often providing consistent details about its composition.

The April 1890 issue of the Tombstone Epitaph does contain a brief item about cowboys encountering a large, unknown winged creature. But it does not include a photograph, and the description — while intriguing — is brief and undetailed.

The Lawndale Incident

The most dramatic modern Thunderbird encounter occurred on July 25, 1977, in Lawndale, Illinois. Around 8:00 PM, a group of children were playing in the backyard of Ruth and Jake Lowe’s home when two enormous dark birds appeared from the south. One of the birds reportedly swooped down and grabbed ten-year-old Marlon Lowe by his tank top straps, lifting him approximately two feet off the ground and carrying him roughly thirty to forty feet before dropping him.

Three adult witnesses — Ruth Lowe, Betty Daniels, and another neighbor — corroborated the account. They described the birds as black with white-banded necks, with wingspans they estimated at roughly eight to ten feet. The birds flew off to the northeast.

Wildlife officials suggested the birds were turkey vultures or California condors, but the witnesses rejected these identifications. Turkey vultures have wingspans of about five to six feet and are not known to attack humans. The California condor was nearly extinct by 1977 and had not been seen in Illinois in recorded history.

Local journalist Jerry Coleman (cousin of cryptozoologist Loren Coleman) investigated the case and found the witnesses consistent and credible. Loren Coleman himself wrote extensively about the incident, noting that Ruth Lowe was so traumatized that her hair reportedly began turning white in the weeks following the event. Marlon Lowe’s shirt was stretched and torn consistent with the witnesses’ account.

Subsequent Sightings

Thunderbird sightings did not begin or end with Lawndale. Reports have come from across the United States:

• 1948, Alton, Illinois — Multiple witnesses reported a bird-shaped object flying over the town, described as having a wingspan of at least fifteen feet.
• 1969, Clinton County, Pennsylvania — Several witnesses reported a large bird with a wingspan estimated at twenty-five feet.
• 2002, Alaska — Multiple witnesses and a bush pilot reported a bird with a wingspan they estimated at fourteen feet, larger than any known species in the region.
• 2007, San Antonio, Texas — A witness filmed a large, unidentified bird; the footage was analyzed but deemed inconclusive.

Key Claims

• Giant, unidentified birds with wingspans of 15-25 feet exist in North America. Witnesses describe birds far larger than any known living species on the continent.
• These creatures may be surviving populations of Argentavis or teratorns. Some cryptozoologists propose that these sightings represent remnant populations of Pleistocene-era giant birds such as Argentavis magnificens (wingspan of 23 feet) or teratorns.
• The birds match descriptions in Indigenous mythology. The consistency between modern sighting reports and ancient Thunderbird legends suggests a biological basis for the mythology.
• A photograph exists but has been suppressed or lost. The “Tombstone Thunderbird” photograph is real but has been concealed or lost to history.
• Mainstream science refuses to investigate. The stigma of cryptozoology prevents ornithologists from taking sighting reports seriously.

Evidence

In Favor

The Lawndale incident remains the strongest piece of evidence. Three independent adult witnesses corroborated a child’s account with consistent details. The physical evidence (stretched shirt) matched the story. None of the witnesses recanted over the following decades, and their accounts did not change significantly with retelling.

The sheer volume of sighting reports — spanning centuries and thousands of miles — is also cited as evidence. While individual reports are unreliable, proponents argue that the pattern is significant.

Indigenous oral traditions across dozens of cultures describe very large birds. While these traditions are mythological, some researchers note that other Indigenous oral histories have been validated by modern science — for example, Aboriginal Australian stories about rising sea levels that correspond to post-Ice Age geological evidence.

Against

No physical evidence — no feathers, no bones, no carcasses, no nests — has ever been recovered from a Thunderbird. In an era of ubiquitous camera phones, no clear photographic or video evidence has emerged despite continued sighting reports.

The physics of flight impose hard limits on bird size. A bird large enough to lift a sixty-five-pound child would need a body mass, wingspan, and musculature that are almost certainly impossible for a warm-blooded, flying vertebrate under current atmospheric conditions. Argentavis magnificens, the largest known flying bird, is believed to have been primarily a soaring bird that could not have performed the kind of powered, low-altitude flight described in the Lawndale incident.

Misidentification is a well-documented problem in eyewitness accounts of wildlife. Large birds can appear much larger than they are when seen against an empty sky. Turkey vultures, great blue herons, and sandhill cranes — all common in the areas where Thunderbird sightings occur — have wingspans that can appear impressively large to startled observers.

Debunking / Verification

The Thunderbird remains unresolved because it cannot be conclusively debunked without a negative proof — you cannot prove a giant bird does not exist somewhere in North America’s vast wilderness. However, the absence of physical evidence after centuries of reports is a significant problem for proponents.

The Tombstone photograph’s status as a possible false memory or cultural confabulation is well-established by memory researchers. The phenomenon of people “remembering” a photograph that apparently doesn’t exist is consistent with research on source monitoring errors and the reconstructive nature of memory.

The Lawndale incident, while difficult to explain through conventional ornithology, is also difficult to verify. The description of the birds as black with white-banded necks does not match any known species in the region, but eyewitness descriptions of animals during high-stress encounters are notoriously unreliable.

Cultural Impact

The Thunderbird occupies a unique space in American culture — it is simultaneously an ancient Indigenous spiritual being and a modern cryptozoological puzzle. This dual identity has made it a touchstone for discussions about the relationship between mythology and reality, and about whether Western science adequately accounts for Indigenous knowledge.

The cryptozoological Thunderbird community is considerably more subdued than, say, the Bigfoot community. There are no reality TV shows devoted to hunting giant birds, and the Thunderbird lacks the commercial infrastructure that surrounds Sasquatch. This may actually lend the Thunderbird more credibility in some quarters — it has not been debased by monetization.

The missing Tombstone photograph has become a case study in the psychology of false memory, cited in academic papers on the Mandela Effect and source monitoring errors.

In Popular Culture

• The Thunderbird appears on the flag and many institutions of the city of Phoenix, Arizona
• The Mothman Prophecies (2002) — while focused on a different cryptid, the film reflects similar giant-flying-creature folklore
• Thunderbird is a recurring motif in comic books, particularly in Native American-themed storylines
• The term “thunderbird” is used by Ford Motor Company, the U.S. Air Force Thunderbirds aerobatic team, and numerous sports teams
• Mark A. Hall, Thunderbirds: America’s Living Legends of Giant Birds (2004) — definitive cryptozoological treatment
• The missing photograph features in books on the Mandela Effect and false memory

Key Figures

• Marlon Lowe — The ten-year-old boy allegedly grabbed by a giant bird in Lawndale, Illinois, in 1977
• Ruth Lowe — Marlon’s mother and primary adult witness
• Loren Coleman — Prominent cryptozoologist who investigated and wrote about the Lawndale incident
• Mark A. Hall — Author and researcher who compiled the most comprehensive catalog of Thunderbird sighting reports
• John A. Keel — Anomalist and author who documented Thunderbird sightings alongside other Fortean phenomena

Timeline

Sources & Further Reading

• Mark A. Hall, Thunderbirds: America’s Living Legends of Giant Birds (Paraview Press, 2004)
• Loren Coleman, Mysterious America: The Ultimate Guide to the Nation’s Weirdest Wonders (2007)
• Jerome Clark, Unexplained!: Strange Sightings, Incredible Occurrences, and Puzzling Physical Phenomena (2012)
• John A. Keel, The Mothman Prophecies (1975) — covers overlapping Fortean phenomena
• “The Lawndale Thunderbird,” Fortean Times archive
• Karl P. N. Shuker, In Search of Prehistoric Survivors (1995)

Related Theories

• Ancient Indian Vimana Flying Machines — another claim of large flying entities dismissed by mainstream science