Behavior and ecology of burrowing owls on the Oakland Municipal Airport

Author(s)
Thomsen, Lise
Year
Article Title
Behavior and ecology of burrowing owls on the Oakland Municipal Airport
Volume
73
Pages
177-192
Start Page Number
177
Final Page
192
Review

Datapoints

Displaying 1 - 16 of 16 datapoints.
Species: Burrowing Owl (Athene cunicularia formerly Speotyto cunicularia)
Exposure Endpoint Type Endpoint Description Endpoint Value Sample Size Units Life Cycle Stage Specific Location Range Type
Survival/ Mortality 18 40 birds % Nestling Oakland Airport Exposure Factor Datasets
Dietary Composition mean percent occurrence in pellets mammals (18.9%), birds (3.9%), insects (29.9%), vegetation (71.3%) 209 pellets Not Reported Oakland Airport Exposure Factor Datasets
Time of Migration or Dispersal Sep, Jan Not Reported Juvenile Oakland Airport Exposure Factor Datasets
Dietary Composition mean percent occurrence in pellets mammals (31.4%), birds (5.9%), insects (28.6%), vegetation (61.0%) 608 pellets Not Reported Oakland Airport Exposure Factor Datasets
Time of Molt Jul (begin) Not Reported Adult Oakland Airport Exposure Factor Datasets
Dietary Composition mean percent occurrence in pellets mammals (41.2%), birds (2.0%), insects (23.3%), vegetation (55.5%) 366 pellets Not Reported Oakland Airport Exposure Factor Datasets
Fledging or Weaning Rate proportion of nesting pairs that successfully fledged young (over two years) 18 birds % Adult Oakland Airport 53.3-88.8 Exposure Factor Datasets
Dietary Composition mean percent occurrence in pellets mammals (35.7%), birds (1.3%), insects (27.7%), vegetation (57.4%) 929 pellets Not Reported Oakland Airport Exposure Factor Datasets
Time of Nesting April - June 18 birds Adult Oakland Airport Exposure Factor Datasets
Body Weight - Mean 172.0 12 birds g Not Reported Oakland Airport 145.0-191.3 Exposure Factor Datasets
Time of Fledging or Metamorphosis period by which fledging is complete September 18 birds Adult Oakland Airport Exposure Factor Datasets
Body Weight - Mean 168.0 10 birds g Not Reported Oakland Airport 125.6-210.0 Exposure Factor Datasets
Territory Size 1.98 6 pairs ac Adult Oakland Airport 0.1-4.0 Exposure Factor Datasets
Clutch or Litter Size mean annual productivity 18 birds young/breeding adult Adult Oakland Airport 1.7-2.2 Exposure Factor Datasets
Survival/ Mortality 70 40 birds % Juvenile Oakland Airport Exposure Factor Datasets
Survival/ Mortality 19 18 birds % Adult Oakland Airport Exposure Factor Datasets

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