The Distribution of Passenger Pigeon on Caddo Sites in the Trans-Mississippi South
Bibliographic record
Abstract
Following up on the discovery of 10 passenger pigeon elements from one bird in a Caddo burial feature (Burial 52) at the Mitchell site (41BW4) on the Red River in Bowie County, we have documented the distribution of passenger pigeon on Caddo sites in the Trans-Mississippi South. To date, we have identified 10 Caddo sites dating between ca. A.D. 1160-1710 with passenger pigeon bones, along with two Woodland period sites (generally predating ca. A.D. 800-900) in the region. These sites range as far east as the Saline River basin in Southwest Arkansas, as far west as the George C. Davis (41CE19) and Spike (41DT16) sites in East Texas, as far north as the Spiro site (34Lf40) in eastern Oklahoma, and as far south as the McLelland site (16BO236) in Northwest Louisiana, primarily situated in the Pineywoods. As Jackson and Jackson have noted, the passenger pigeons found on Caddo sites appear to reflect a “southward and westward extension of their range during the Late Woodland period (ca. A.D. 700-1000) that continues into the Caddo era (ca. A.D. 1000-1500), likely reaching East Texas sometime shortly after A.D. 1000.”
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".