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Cited by 9Avian ecology and behaviorWildlife Ecology and ConservationAnimal Ecology and Behavior Studies

The DOI matches its Crossref record; 23 of the 23 references it cites were found in a registry or an index.

FACTORS AFFECTING WINTER ROOST DISPERSAL AND DAILY BEHAVIOUR OF COMMON RAVENS (CORVUS CORAX) IN SOUTHWESTERN ALBERTA

Preston, Michael I.·2005·Northwestern Naturalist
DOI 10.1898/1051-1733(2005)086[0123:fawrda]2.0.co;2
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Abstract

The common raven (Corvus corax) is a widely distributed and opportunistic scavenger and predator. In Calgary, Alberta, ravens were virtually absent in the early 1970s, but by 2000 this species was a regular breeder and common winter visitor. Numbers increased significantly during Christmas Bird Counts from 1970 to 2000. Most birds that occur in Calgary during the winter commute twice daily between a roost in the foothills and a refuse site in the city. The distance between these points is 57.5 km and results in a commute cost that does not appear to be endured by individuals remaining in the foothills. I estimated that refuse-bound birds expend 25% more energy than foothills birds when traveling to known food locations. Upon arrival at the refuse site, individuals compensated for this additional expense by spending more time walking and foraging, which are less-energy-demanding behaviours, and less time flying, which is a high-energy-demanding behavior, than birds in the foothills. The refuse site appears to act as an emergency resource when conditions in the foothills are unfavourable for meeting daily energy requirements. These conditions were mainly caused by decreasing temperature and increasing snow depth in the foothills. Decreasing day length and temperature were factors affecting roost site departure, while decreasing temperature and increasing snow depth resulted in greater numbers of birds commuting. Although the commute has a known cost, a balance is likely realize…

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Research works printed but not linked: 13

  1. Anderson, 1981, Studies in Avian Biology, 6, 262
  2. Arbib, 1981, Studies in Avian Biology, 6, 30
  3. Best, 1981, Studies in Avian Biology, 6, 252
  4. Brodie, 1980, Bird Study, 27, 117
  5. Brooks, 1968, Wilson Bulletin, 80, 253
  6. Cottam, 1942, Wilson Bulletin, 54, 121
  7. Engel, 1992b, Wilson Bulletin, 104, 462
  8. Engel, 1992, Wilson Bulletin, 104, 105
  9. Heinrich, 1993, Auk, 110, 247
  10. Houston, 1977, Blue Jay, 35, 149
  11. Marzluff, 1994, Studies in Avian Biology, 15, 202
  12. Raveling, 1972, Wilson Bulletin, 84, 278
  13. Robbins, 1981, Studies in Avian Biology, 6, 301

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Metadata

Authors
Preston, M. I.
Affiliations
Simon Fraser University (CA)
Corresponding author
Preston, Michael I.
Venue
Northwestern Naturalist
Publisher
Northwestern Naturalist
Published
2005-12
Volume
86
Issue
3
Pages
123-130
ISSN
  • 1051-1733 (ISSN-L)
  • 1938-5315
DOI
10.1898/1051-1733(2005)086[0123:fawrda]2.0.co;2
OpenAlex
W2105380131
Cited by
9
References
23
Citations by year
2023: 2 · 2022: 1 · 2018: 1 · 2017: 1 · 2015: 1 · 2014: 1
FWCI
0.00
Type
journal article
Language
en
Open access
closed
Locations
  • Northwestern Naturalist (publishedVersion)
  • BioOne Complete (BioOne) (submittedVersion)
Funders
Rocky Mountain Research Station
Topics
  • Physical Sciences › Environmental Science › Ecology › Avian ecology and behavior
  • Physical Sciences › Environmental Science › Ecology › Wildlife Ecology and Conservation
  • Physical Sciences › Environmental Science › Ecology › Animal Ecology and Behavior Studies
Keywords
Corvus corax, energy expenditure, scavenging, snow depth, temperature effects, range expansion, winter survival, Calgary

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CoChat. (2026). Citation check: FACTORS AFFECTING WINTER ROOST DISPERSAL AND DAILY BEHAVIOUR OF COMMON RAVENS (CORVUS CORAX) IN SOUTHWESTERN ALBERTA. https://app.cochat.ai/papers/10.1898/1051-1733(2005)086%5B0123:fawrda%5D2.0.co;2
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Preston, M. I. (2005). FACTORS AFFECTING WINTER ROOST DISPERSAL AND DAILY BEHAVIOUR OF COMMON RAVENS (CORVUS CORAX) IN SOUTHWESTERN ALBERTA. Northwestern Naturalist. https://doi.org/10.1898/1051-1733(2005)086%5B0123%3Afawrda%5D2.0.co%3B2