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Displaying 81 - 120 of 422 datapoints
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Falco sparverius

Citation:

Food habits and abundance of raptors in an agricultural area of Tulare County, California

Author(s)
Hawkins, Cole Carlson
Pages
102
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Location Sample Size Type
Dietary Composition insects (97%), isopod (5%), birds (27%), mammals (25%) percent occurrence in sample pellets Not Reported Not Reported agricultural lands Not Reported Exposure Factor Datasets
Citation:

Clutch sizes, hatchability rates, and sex ratios of sparrow hawks in eastern Pennsylvania

Author(s)
Heintzelman, Donald S. and Alexander C. Nagy
Pages
306-311
Year
Issue
3
Volume
80
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Duration of Incubation or Gestation 30.9 incubation period 28-35 d Both Male and Female Embryo Berks county 2 clutches (8 eggs) Exposure Factor Datasets
Survival/ Mortality 78 hatching success % Both Male and Female Hatchling Berks county 55 eggs (14 clutches) Exposure Factor Datasets
Clutch or Litter Size 4.23 1-6 eggs Female Adult Berks county 13 clutches Exposure Factor Datasets
Citation:

An analysis of the population dynamics of selected avian species with special reference to changes during the modern pesticide era

Author(s)
Henny, Charles J.
Pages
23-28
Publisher
United States Department of the Interior, Fish and Wildlife Service, Wildlife Research Report No. 1
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Error Units Sex Life Cycle Stage Location Sample Size Type
Clutch or Litter Size 4.59 0.60 SD eggs/clutch Female Adult 244 Exposure Factor Datasets
Survival/ Mortality 0.602 mortality rate estimate for banded individuals 0.035 SD Both Male and Female Both Adults and Juveniles throughout USA and Canada 118 Exposure Factor Datasets
Survival/ Mortality 0.465 mortality rate of banded individuals, 1946-65 0.017 SD Both Male and Female Adult throughout USA and Canada 6,544 Exposure Factor Datasets
Citation:

The incidence of man-caused and natural mortalities to raptors

Author(s)
Keran, Doug
Pages
108-112
Year
Issue
4
Volume
15
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Location Sample Size Type
Longevity 118 longest survival of a banded individual mo Both Male and Female Both Adults and Juveniles 1,017 records of mortality Exposure Factor Datasets
Survival/ Mortality 12.6 average length of survival of banded individuals mo Both Male and Female Both Adults and Juveniles throughout USA 1,017 Exposure Factor Datasets
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 34 average density +/- 11 95% CI kestrels/100 mi Both Male and Female Both Adults and Juveniles coastal and coast range areas 135 obs. Exposure Factor Datasets
Citation:

Foraging strategies of American kestrels during breeding

Author(s)
Rudolph, Seri G.
Pages
1268-1276
Year
Volume
63
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Population Density 23 individuals per 96 km2 Both Male and Female Adult agricultural lands (lat, 38 deg 32'N; long., 121 deg 47'W) 23 Exposure Factor Datasets
Foraging Distance distance foraged from nest <0.5-3.5 km Female Adult agricultural lands (lat, 38 deg 32'N; long., 121 deg 47'W) 4 Exposure Factor Datasets
Citation:

The hunting behavior of American kestrels: Applications of foraging theory

Author(s)
Rudolph, Seri Gale
Pages
64
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Location Sample Size Type
Dietary Composition mammal (57%), insect (42%), other (1%) percent composition of sample pellets (by volume) Both Male and Female Adult agricultural lands 59 pellets Exposure Factor Datasets
Dietary Composition mammal (43%), insect (51%), other (6%) percent composition of sample pellets (by volume) Both Male and Female Adult agricultural lands 71 pellets Exposure Factor Datasets
Dietary Composition mammal (39%), insect (60%), other (6%) percent composition of sample pellets (by volume) Both Male and Female Adult agricultural lands 95 pellets Exposure Factor Datasets
Dietary Composition mammal (24%), insect (74%), other (2%) percent composition of sample pellets (by volume) Both Male and Female Adult agricultural lands 104 pellets Exposure Factor Datasets
Dietary Composition mammal (82%), insect (16%), other (2%) percent composition of sample pellets (by volume) Both Male and Female Adult agricultural lands 116 pellets Exposure Factor Datasets
Citation:

The effect of vegetative cover on foraging strategies, hunting success and nesting distribution of American kestrels in central Missouri

Author(s)
Toland, Brian R.
Pages
14-20
Year
Volume
21
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Location Sample Size Type
Population Density 48 individuals in 175 km2 Both Male and Female Both Adults and Juveniles agricultural lands, woodlots, meadows 1 study area Exposure Factor Datasets
Population Density 50 individuals in 175 km2 Both Male and Female Adult agricultural lands, woodlots, meadows 1 study area Exposure Factor Datasets
Citation:

Influence of nest-box placement and density on abundance and productivity of American kestrels in central Missouri

Author(s)
Toland, Brian R. and William H. Elder
Pages
712-717
Year
Volume
99
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Fledging or Weaning Rate 5.0 three year mean fledging rate 3.5-5.46 number of fledglings per nest Both Male and Female Fledgling rural and urban lands 28 pairs Exposure Factor Datasets
Clutch or Litter Size 5.1 mean clutch size over 3 years 4.8-5.2 eggs per nest Female Adult rural and urban lands 28 pairs Exposure Factor Datasets
Population Density 0.06 mean pair density in study area (194 km2) 0.05-0.13 pairs per km2 Both Male and Female Adult rural and urban lands 5 years Exposure Factor Datasets
Population Density 0.22 mean density in study area individuals per km2 Both Male and Female Both Adults and Juveniles rural and urban lands 5 years Exposure Factor Datasets
Citation:

A study of factors affecting nesting raptor populations in urban ares, Sacramento County, California - 1974

Author(s)
Vincenty, Joseph A., III
Pages
1-21
Publisher
California Department of Fish and Game, Wildlife Management Branch Administrative Report No. 74-5
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Location Sample Size Type
Fledging or Weaning Rate 2.2 fledging rate per successful nest fledglings per nest Both Male and Female Fledgling American River; oak woodlands, grasslands, residential 17 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 Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Hatching Success 79 mean hatchability measured over 4 years 70-83 % Both Male and Female Hatchling Great Basin (elev. 1260-2340 m) 157 boxes Exposure Factor Datasets
Citation:

Breeding behavior of the American kestrel (sparrow hawk)

Author(s)
Willoughby, Ernest J. and Tom J. Cade
Pages
75-96
Volume
3
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Sample Size Type
Duration of Incubation or Gestation 28.4 mean incubation period in captivity 27-33 d Both Male and Female Embryo 5 Exposure Factor Datasets
Clutch or Litter Size 3.66 mean clutch size in captivity 3-4 eggs Female Adult 5 Exposure Factor Datasets
Citation:

Prediction of raptor resting metabolism: comparison of measured values with statistical and biophysical estimates

Author(s)
Hayes, Stephen R. and James A. Gessaman
Year
Volume
7
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Type
Surface Area 7.15 x 10E-3 dorsal surface area m^2 Not Reported Adult Not Reported Exposure Factor Datasets
Surface Area 7.15 x 10E-3 ventral surface area m^2 Not Reported Adult Not Reported Exposure Factor Datasets
Citation:

Longevity records of North American birds: Gaviidae through Alcidae

Author(s)
Clapp, Roger B., M. Kathleen Klimkiewicz and John H. Kennard
Pages
81-124
Year
Issue
2
Volume
53
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Type
Longevity 11-07 from USFWS Bird Banding Laboratory data yr-mo Not Reported Adult 1832 band recoveries Exposure Factor Datasets
Citation:

Energetics of two wintering raptors

Author(s)
Koplin, James R., Michael W. Collopy, Albert R. Bammann and Howard Levenson
Pages
795-806
Year
Volume
97
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Type
Metabolic Rate 40.8 existence metabolism as measured by the difference between food energy and energy in egesta of birds maintained at constant body mass for periods of 3 or more days kcal/d Not Reported Adult Not Reported Exposure Factor Datasets
Citation:

Impacts of a nuclear energy facility on raptorial birds

Author(s)
Fitzner, R.E.
Pages
9-33
Publisher
U.S. Fish and Wildlife Service
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Error Units Sex Life Cycle Stage Location Sample Size Type
Fledging or Weaning Rate 4.0 average number of young fledged 0.41 fledges/nest Not Reported Fledgling Hanford Site, Benton and Franklin Counties 4 nests Exposure Factor Datasets
Population Density 10 number of nesting pairs counted annually on study site pairs/1476 sq km Both Male and Female Adult Hanford Site, Benton and Franklin Counties 4 years Exposure Factor Datasets
Population Density 20 number of individual kestrels counted annually on study site individuals/1476 sq km Both Male and Female Adult Hanford Site, Benton and Franklin Counties 4 years Exposure Factor Datasets
Citation:

Growth of body components in parent- and hand-reared captive kestrels

Author(s)
Bird, David M. and Robert G. Clark
Pages
77-84
Year
Issue
3
Volume
17
Exposure Endpoint Type Endpoint Value Endpoint Description Error Units Sex Life Cycle Stage Sample Size Type
Growth Rate 0.250 growth rate of body weight in parent-reared birds Male Nestling 11 birds Exposure Factor Datasets
Growth Rate 0.239 growth rate of body weight in parent-reared birds Female Nestling 8 birds Exposure Factor Datasets
Body Weight - Mean 113.4 average body weight 2.0 SE g Male Adult 25 birds Exposure Factor Datasets
Body Weight - Mean 120.2 average body weight 5.3 SE g Female Adult 26 birds Exposure Factor Datasets
Citation:

Food consumption of a sparrow hawk

Author(s)
Wing, Leonard and Anne H. Wing
Pages
168-170
Year
Volume
41
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Sample Size Type
Food Ingestion Rate 43.6 average and range of daily caloric intake (food provided ad libidum) 28.0-70.2 cal/d Male Adult 1 bird Exposure Factor Datasets

Falco peregrinus

Citation:

Longevity records of North American birds: Gaviidae through Alcidae

Author(s)
Clapp, Roger B., M. Kathleen Klimkiewicz and John H. Kennard
Pages
81-124
Year
Issue
2
Volume
53
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Type
Longevity 12-03 from USFWS Bird Banding Laboratory data yr-mo Not Reported Adult 321 band recoveries Exposure Factor Datasets
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