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Falco sparverius (American Kestrel)

Citation:

Parental care and behavior of breeding American Kestrels (Falco sparverius) in central Argentina.

Author(s)
Liébana, M.S., Sarasola, J.H. and Bó, M.S.
Issue
4
Volume
43
Exposure Endpoint Type Endpoint Value Endpoint Description Error Units Life Cycle Stage Location Sample Size Type
Dietary Composition Vertebrates (29.1 %) Arthropods (70.9 %) Frequency determined by pellet analysis Frequency, % Fledgling Parque Luro Reserve 19 fledglings Exposure Factor Datasets
Dietary Composition Vertebrates (11.2 %) Arthropods (88.8 %) Frequency determined by prey remains Frequency, % Fledgling Parque Luro Reserve 19 fledglings Exposure Factor Datasets
Time of Mating/ Laying Late October-late December Adult Parque Luro Reserve 6 nests Exposure Factor Datasets
Clutch or Litter Size 4.3 0.3 eggs Embryo Parque Luro Reserve 6 nests Exposure Factor Datasets
Hatching Success 0.73 Embryo Parque Luro Reserve 26 eggs Exposure Factor Datasets

Falco sparverius

Citation:

Differential habitat use by sexes of American kestrels wintering in northern California

Author(s)
Koplin, James R.
Pages
39-42
Year
Issue
2
Volume
7
Exposure Endpoint Type Endpoint Value Endpoint Description Error Units Sex Life Cycle Stage Location Sample Size Type
Population Density 115 average density +/- 25 95% CI individuals/100 mi Both Male and Female Both Adults and Juveniles agricultural lands 205 obs. Exposure Factor Datasets
Citation:

Longevity in a captive sparrow hawk

Author(s)
Kuyt, E.
Pages
197
Year
Volume
30
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Type
Longevity 12 yr Not Reported Adult 1 Exposure Factor Datasets
Citation:

Behavior and ecology of the American Kestrel in the Sierra Nevada of California

Author(s)
Balgooyen, Thomas G.
Year
Volume
103
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Body Weight - Mean body weight at hatch 10-12 g Both Male and Female Hatchling Sagehen Creek Field Station Not Reported Exposure Factor Datasets
Age at Fledging, Metamorphosis, Weaning 29-31 d Both Male and Female Fledgling Sagehen Creek Field Station Not Reported Exposure Factor Datasets
Clutch or Litter Size 4 average clutch size eggs/clutch Female Adult Sagehen Creek Field Station 42 Exposure Factor Datasets
Duration of Incubation or Gestation 29-31 d Both Male and Female Embryo Sagehen Creek Field Station Not Reported Exposure Factor Datasets
Home Range 109.4 average home range - breeding ha Both Male and Female Adult Sagehen Creek Field Station 32 Exposure Factor Datasets
Time of Mating/ Laying late May - June entire laying period Female Adult Sagehen Creek Field Station Not Reported Exposure Factor Datasets
Time of Molt May - September Both Male and Female Adult Sagehen Creek Field Station Not Reported Exposure Factor Datasets
Fledging or Weaning Rate 98 of chicks that hatched % Both Male and Female Fledgling Sagehen Creek Field Station 150 Exposure Factor Datasets
Growth Rate y = 8.89 + 7.33x growth rate from day 3-16 Male Nestling Sagehen Creek Field Station Not Reported Exposure Factor Datasets
Growth Rate y = 7.77 + 7.44x growth rate from day 3-16 Female Nestling Sagehen Creek Field Station Not Reported Exposure Factor Datasets
Hatching Success 89.3 % Both Male and Female Hatchling Sagehen Creek Field Station 168 Exposure Factor Datasets
Dietary Composition insects (31.7%), reptiles (26.0%), birds (16.6%), mammals (25.7%) percent of prey by prey weight Both Male and Female Adult Sagehen Creek Field Station Not Reported Exposure Factor Datasets
Citation:

A study and implications of habitat separation by sex of wintering American kestrels (Falco sparverius)

Author(s)
Meyer, Ruthe Lashe and Thomas G. Balgooyen
Pages
107-123
Year
Volume
6
Exposure Endpoint Type Endpoint Value Endpoint Description Error Range Units Sex Life Cycle Stage Location Sample Size Type
Territory Size 31.6 10.7 SD 18.7-42.0 ha Female Adult Hollister Basin (elev. 48-210 m) 5 Exposure Factor Datasets
Territory Size 13.1 2.0 SD 9.7-14.8 ha Male Adult Hollister Basin (elev. 48-210 m) 5 Exposure Factor Datasets
Dietary Composition invertebrates (173.8), reptiles (23.0), birds (481.0), mammals (609.5) amount of prey taken by prey weight g Female Adult Hollister Basin (elev. 48-210 m) 5 Exposure Factor Datasets
Dietary Composition invertebrates (157.5), reptiles (0), birds (272.4), mammals (221.8) amount of prey taken by prey weight g Male Adult Hollister Basin (elev. 48-210 m) 5 Exposure Factor Datasets
Citation:

A winter population study of the American kestrel in central Ohio

Author(s)
Mills, G. Scott
Pages
241-247
Year
Volume
87
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Territory Size 1.4 average diameter of territories km Both Male and Female Adult southcentral area, agricultural lands 16 Exposure Factor Datasets
Population Density 17-27 individuals per 52 km^2 Both Male and Female Adult southcentral area, agricultural lands Not Reported Exposure Factor Datasets
Citation:

Reproductive patterns in captive American kestrels (sparrow hawks)

Author(s)
Porter, Richard D. and Stanley N. Wiemeyer
Pages
46-53
Year
Volume
74
Exposure Endpoint Type Endpoint Value Endpoint Description Error Range Units Sex Life Cycle Stage Sample Size Type
Duration of Incubation or Gestation 27 mean number of days between 5th egg laid and 5th egg hatched 0.58 SE 26-28 d Both Male and Female Embryo 3 eggs Exposure Factor Datasets
Time of Mating/ Laying March-May period of laying Female Adult Not Reported Exposure Factor Datasets
Age at Fledging, Metamorphosis, Weaning 28.4 mean nestling period 26-32 d Both Male and Female Fledgling 29 chicks Exposure Factor Datasets
Citation:

Notes on the American sparrow hawk

Author(s)
Roest, A.I.
Pages
1-19
Year
Issue
1
Volume
74
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Body Weight - Mean 102.5 80.0-143.0 g Male Adult throughout USA 88 Exposure Factor Datasets
Body Weight - Mean 119.0 86.0-164.8 g Female Adult throughout USA 72 Exposure Factor Datasets
Time of Molt July-October/November period of molt Both Male and Female Adult throughout USA Not Reported Exposure Factor Datasets
Survival/ Mortality 57 average annual mortality of banded individuals (over 6 years) % Both Male and Female Both Adults and Juveniles throughout USA Not Reported Exposure Factor Datasets
Citation:

Prey selection and caloric ingestion rate of captive American kestrels

Author(s)
Barrett, Gary W. and Mackey, Carl V.
Pages
514-519
Year
Issue
4
Volume
87
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Type
Food Ingestion Rate 0.42 mean caloric consumption per g body weight per day (wet weight basis) kcal/g/day Male Adult 2 Exposure Factor Datasets
Citation:

Fall migration of diurnal raptors at Pt. Diablo, California

Author(s)
Binford, Laurence C.
Pages
1-16
Year
Issue
1
Volume
10
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Location Sample Size Type
Time of Migration or Dispersal August (begin), October (peak), November (end) time period of fall migration Both Male and Female Not Reported Pt. Diablo, Marin Headlands 276 Exposure Factor Datasets
Citation:

Seasonal variation in body weight of sparrow hawks in California

Author(s)
Bloom, Peter H.
Pages
17-19
Year
Issue
2
Volume
48
Exposure Endpoint Type Endpoint Value Endpoint Description Error Range Units Sex Life Cycle Stage Location Sample Size Type
Body Weight - Mean 110.7 mean body weight measured over 4 years 1.1 SE 105.6-112.1 g Male Both Adults and Juveniles coastal southern CA 69 Exposure Factor Datasets
Body Weight - Mean 119.8 mean body weight measured over 4 years 0.9 SE 117.4-123.9 g Female Both Adults and Juveniles coastal southern CA 111 Exposure Factor Datasets
Citation:

Nest box use and reproductive biology of the American kestrel in Lassen County, California

Author(s)
Bloom, Peter H. and Stephen J. Hawks
Pages
9-14
Year
Issue
1
Volume
17
Exposure Endpoint Type Endpoint Value Range Units Sex Life Cycle Stage Location Sample Size Type
Age at Fledging, Metamorphosis, Weaning 28-30 d Both Male and Female Fledgling Great Basin (elev. 1260-2340 m) 112 Exposure Factor Datasets
Clutch or Litter Size 4.3 3.5-4.9 eggs/clutch Female Adult Great Basin (1260-2340 m) 38 clutches Exposure Factor Datasets
Fledging or Weaning Rate 3.7 2.5-4.6 fledged/successful nest Both Male and Female Fledgling Great Basin (1260-2340 m) 30 nests Exposure Factor Datasets
Fledging or Weaning Rate 3.1 2.5-3.6 fledged/active nest Both Male and Female Fledgling Great Basin (1260-2340 m) 36 nests Exposure Factor Datasets
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