Reference health
How many kilojoules does a Black-billed Magpienest cost?
14/14 checkable references clean · checked 2026-07-22
Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a retraction, withdrawal, or removal notice.
2 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.
The 14 checked references that resolve
resolves10.1242/jeb.200.9.1413
Coordination of Respiratory Cycles With Wingbeat Cycles in the Black-Billed Magpie (<i>Pica Pica</i>)
resolves10.2307/4083089
A Quantitative Analysis of Breeding Behavior in the African Village Weaverbird
resolves10.1139/z93-152
Nest site selection and cost of nest building by Cliff Swallows (<i>Hirundo pyrrhonota</i>)
resolves10.1111/j.1474-919X.2001.tb04477.x
Energy metabolizability and nutrient digestibility in the Black‐billed Magpie <i>Pica pica</i>
resolves10.2307/1367336
Temperature Regulation and Climatic Adaptation in Black-Billed and Yellow-Billed Magpies
resolves10.2307/1366368
A Re-Examination of the Relation between Standard Metabolic Rate and Body Weight in Birds
resolves10.1098/rspb.1999.0844
Host sexual selection and cuckoo parasitism: an analysis of nest size in sympatric and allopatric magpie Pica pica populations parasitized by the great spotted cuckoo Clamator glandarius
resolves10.1007/BF00177797
Does the great spotted cuckoo choose magpie hosts according to their parenting ability?
resolves10.1002/(SICI)1097-010X(19971101)279:4<313::AID-JEZ1>3.0.CO;2-R
Flight style of the black-billed magpie: Variation in wing kinematics, neuromuscular control, and muscle composition
The 2 references without a DOI — listed, not checked
no DOI — not checkedVerbeek, N. A M. 1972. Daily and annual time budget of the Yellow-billed Magpie. Auk 89:567–582.
no DOI — not checkedVerbeek, N. A M. 1973. The exploitation system of the Yellow-billed Magpie. University of California Publications in Zoology 99:1–58.
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or importance of the work itself, and nothing about references deposited without a DOI.
checked 2026-07-22 — re-checked daily as this page is visited; titles and statuses come from Crossref and DataCite and are not part of the signed record
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