Patterns of Nestling Feeding in Harris's Sparrows, <em>Zonotrichia querula</em> and White-crowned Sparrows, <em>Z. leucophrys</em>, in the Northwest Territories, Canada
Bibliographic record
Abstract
Patterns of nestling feeding by males and females were compared in sympatric populations of Harris’s Sparrows (Zonotrichia querula) and Gambel’s White-crowned Sparrows (Z. leucophrys gambelii) in the Northwest Territories, Canada. In both species, only the female brooded young. Total feeding rate (both parents), and male and female feeding rates, increased with nestling age in both species; total feeding rates did not differ significantly between species. Nestlings of both species were fed most frequently by females during the early part of the nestling period (day 0-5), and feeding rates did not approach parity until nestlings were 6-8 d old. Patterns of nestling feeding, including initially low male provisioning, in Harris’s Sparrows and White-crowned Sparrows at my low arctic study site were similar to those in other populations of Zonotrichia. Low levels of male nestling care, relative to females, appears to be relatively uncommon among socially monogamous passerines. Reduced male care may be adaptive in temperate environments, as it would allow males to pursue other mating opportunities. However, reasons for persistence of the trait in the low arctic, where breeding is highly synchronous, remain unclear.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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 teacher head, 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".