Thunderbird Cryptozoology Anomalies and Alternative Science

An article by Willie Shughart that compares "five of the largest birds to occur in the contiguous United States and southern Canada" to the thunderbird.

• Cryptozoology.com - Thunderbird - An article by Craig Heinselman discussing the cryptid, cryptozoology sightings, and anomalies and alternative science the elusive "Thunderbird Photograph".
• Evidence of the Giant Birds - Evidence that the Native Americans legend of the anomalies and alternative cryptozoology science thunderbird is based on fact.
• A Comparison of Certain North American Birds to the Thunderbird - An article by Willie Shughart that compares "five of the cryptozoology largest birds to occur in the contiguous United States and cryptozoology southern Canada" to the thunderbird.
• The Thunderbird Petroglyphs of the Upper Midwest - Pictures and article by Kevin L. Callahan discussing cryptozoology thunderbird petroglyphs.
• Thunderbird - A discussion of the cryptid and what it might be.

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