Thunderbird Sightings and Folklore: Giant Birds in American Legend

On July 25, 1977, in Lawndale, Illinois, a ten-year-old boy named Marlon Lowe was grabbed by a large bird and lifted partially off the ground before his mother’s screaming frightened the animal into releasing him. Marlon’s mother and four other adult witnesses were present. The bird was described as having a wingspan of approximately ten feet, a long neck, and a hooked beak and was seen to fly away with apparent ease. Local and national press covered the incident. The Illinois Department of Conservation investigated. No conventional bird was identified that matched the description, and the investigation was eventually closed without a definitive conclusion.

A large Thunderbird-type creature flies above a family home.

The Lawndale incident sits at the intersection of two traditions that rarely touch each other: the contemporary cryptid account and one of the oldest and most widespread Indigenous North American spiritual traditions. The Thunderbird of Indigenous tradition is a sacred being, not a cryptid. Its conflation with reports of large, anomalous birds in modern times raises genuine questions about the relationship between contemporary encounter reports, historical sightings, and the living spiritual tradition that provides the Thunderbird its deepest meaning.

The Indigenous Thunderbird Tradition

The Thunderbird appears in the oral and artistic traditions of Indigenous peoples across North America, from the Pacific Northwest to the Plains to the Great Lakes region, with variations that reflect local cultural and ecological contexts rather than a single unified mythology. In Pacific Northwest traditions, the Thunderbird is a being of enormous power associated with storms, rain, and the control of weather, capable of carrying whales in its talons and causing thunder with its wingbeats. In Plains traditions, Thunderbirds are associated with directional powers and the structure of the cosmos. In Great Lakes Ojibwe tradition, the Binesi, or Thunderbird, is a powerful spiritual being that serves as a protector of the people against the underwater spirits of the deep.

These traditions involve a being that is spiritual, cosmologically significant, and not primarily understood as a biological organism. Treating Thunderbird sightings as cryptid encounters strips the tradition of its cultural meaning and imposes a Western framework of biological mystery on what is for many Indigenous communities a living and sacred presence. Researchers approaching Thunderbird traditions need to hold this distinction carefully.

Historical Giant Bird Reports

Reports of anomalously large birds in North America predate the modern cryptid era by centuries. 19th-century American newspapers regularly carried accounts of giant birds seen by settlers in the Southern and Midwestern states, with descriptions of wingspans estimated at twelve to fifteen feet and behavior inconsistent with any known bird species. An 1890 account from the Tombstone Epitaph describes ranchers killing a large, pterodactyl-like bird in the Arizona desert and stretching its wings across a barn wall. The account has never been satisfactorily verified or definitively debunked.

The Pennsylvania Thunderbird tradition is particularly well-documented in the modern era. Multiple witnesses across Allegheny National Forest and surrounding areas have reported large, dark birds with wingspans estimated at fifteen feet or more, behaving in ways inconsistent with the known large bird species of the region. Researcher Stan Gordon has catalogued dozens of these accounts from southwestern Pennsylvania since the 1970s.

Biological Candidates

The most plausible biological candidate for large bird reports is the Teratornis, a vulture-like bird with a wingspan of up to fourteen feet that was definitively present in North America until approximately 10,000 years ago. The question of whether teratorns survived in small, isolated populations beyond their official extinction date is a genuine biological question, not a crazy one: the coelacanth was ‘extinct’ for 65 million years before its 1938 rediscovery. An Andean condor released from captivity can reach a wingspan of ten feet and has been misidentified in North American states far outside its normal range.

References & Further Reading

• Wikipedia: Thunderbird (cryptid)