Birds

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Willow Flycatcher (Empidonax traillii)

Citation:

The energetic consequences of incubation for two passerine species

Author(s)
Walsberg, Glenn E. and James R. King
Pages
644-655
Year
Volume
95
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Lab
Metabolic Rate 0.241 predicted night time basal metabolic rate W Not Reported Adult Not Reported collection location George E. Hudson Biological Reserve, Whitman County Exposure Factor Datasets Laboratory
Citation:

Migration of the willow flycatcher along the middle Rio Grande

Author(s)
Yong, Wang, and Deborah M. Finch
Pages
253-268
Year
Issue
2
Volume
109
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Time of Migration or Dispersal mid-May (onset), June 8 (date of last capture) spring passage Not Reported Adult 42 captures Rio Grand Nature Center (35deg07'N, 106deg41'W); Bosque del Apache National Wildlife Refuge (33deg48'N, 106deg52'W) Exposure Factor Datasets
Time of Migration or Dispersal mid-August (onset), September 16 (date of last capture) fall migration Not Reported Adult 42 captures Rio Grand Nature Center (35deg07'N, 106deg41'W); Bosque del Apache National Wildlife Refuge (33deg48'N, 106deg52'W) Exposure Factor Datasets
Body Weight - Mean 12.7 mean body weight of all birds (subspecies not separated) g Not Reported Adult 84 Rio Grand Nature Center (35deg07'N, 106deg41'W); Bosque del Apache National Wildlife Refuge (33deg48'N, 106deg52'W) Exposure Factor Datasets 1.2 SD
Body Fat (total or %) 1 (8%) to 2.4 (20%) total fat mass in birds with 8% or 20% fat-free body mass g Not Reported Adult 8-42 captures per habitat type Rio Grand Nature Center (35deg07'N, 106deg41'W); Bosque del Apache National Wildlife Refuge (33deg48'N, 106deg52'W) Exposure Factor Datasets
Body Weight - Mean 13.31 mean body weight of adastus subspecies g Not Reported Adult 9 captures Rio Grand Nature Center (35deg07'N, 106deg41'W); Bosque del Apache National Wildlife Refuge (33deg48'N, 106deg52'W) Exposure Factor Datasets 1.19 SD
Body Weight - Mean 12.59 mean body weight of brewsteri subspecies g Not Reported Adult 33 captures Rio Grand Nature Center (35deg07'N, 106deg41'W); Bosque del Apache National Wildlife Refuge (33deg48'N, 106deg52'W) Exposure Factor Datasets 1.13 SD
Body Weight - Mean 13.07 mean body weight of traillii subspecies g Not Reported Adult 7 captures Rio Grand Nature Center (35deg07'N, 106deg41'W); Bosque del Apache National Wildlife Refuge (33deg48'N, 106deg52'W) Exposure Factor Datasets 0.84 SD
Citation:

Time and energy budgets of the willow flycatcher (Empidonax traillii) during the breeding season

Author(s)
Ettinger, Amelia O. and James R. King
Pages
533-546
Year
Volume
97
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Condition
Metabolic Rate total daily energy expenditure kJ/h Male Adult 2-4 birds per breeding phase Hudson Biological Reserve Exposure Factor Datasets breeding
Metabolic Rate total daily energy expenditure kJ/d Female Adult 2-6 birds per breeding phase Hudson Biological Reserve Exposure Factor Datasets breeding

Bushtit (Psaltriparus minumus)

Citation:

A comparison of transects and point counts in oak-pine woodlands of California

Author(s)
Verner, Jared and Lyman V. Ritter
Pages
47-68
Year
Volume
87
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Error
Population Density 71.2 density estimate on a grazed plot by transect counts using an exponential polynomial model birds/40 ha Not Reported Not Reported 64 birds San Joaquin Experimental Range Exposure Factor Datasets Madera 49.6-92.8 95% CI
Population Density 72.8 density estimate on an ungrazed plot by point count using an exponential polynomial model birds/40 ha Not Reported Not Reported 43 birds San Joaquin Experimental Range Exposure Factor Datasets Madera 50.1-95.5 95% CI
Citation:

Ecological and complementarity of three sympatric parids in a California oak woodland

Author(s)
Hertz, Paul E., J.V. Remsen, Jr. and Stacey I. Zones
Pages
307-316
Year
Volume
78
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Condition Error
Territory Size 0.4 average territory size based on > 400 point observations ha Not Reported Adult 12 territories Jasper Ridge Biological Experimental Area, nr Portola Valley Exposure Factor Datasets San Mateo breeding 0.08
Body Weight - Mean 5.37 mean body weight of museum specimens g Not Reported Not Reported 23 birds Exposure Factor Datasets
Citation:

A field test of the variable circular-plot censusing technique in a California coastal scrub breeding bird community

Author(s)
DeSante, David F.
Pages
177-185
Publisher
Cooper Ornithological Society; Studies in Avian Biology No. 6
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Condition
Population Density 2.2 breeding density estimate birds/36 ha Male Adult 6 territories Palomarin Field Station, Point Reyes Bird Observatory Exposure Factor Datasets Marin breeding
Citation:

Flock size, composition, and behavior in a population of bushtits (Psaltriparus minimus)

Author(s)
Ervin, Stephen
Pages
97-191
Year
Issue
2
Volume
48
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type California Counties Condition
Foraging Distance See figure figure showing mapping of approximate ranges of two flocks during one season Both Male and Female Not Reported 2 flocks University of California campus Exposure Factor Datasets Santa Barbara nonbreeding
Citation:

The energetic significance of huddling behavior in common bushtits (Psaltriparus minimus)

Author(s)
Chaplin, Susan B.
Pages
424-430
Year
Volume
99
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error Lab
Metabolic Rate 3.96 approximate basal rate of nocturnal oxygen consumption, measured at 30 deg C cc O^2/g/h Not Reported Adult 12 birds captured at Occidental College, Los Angeles Exposure Factor Datasets Laboratory
Metabolic Rate metabolic rate = 0.36(ambient T) + 14.64 linear regression equation for relationship between nocturnal metabolism and ambient temperature Not Reported Adult 12 birds captured at Occidental College, Los Angeles Exposure Factor Datasets Laboratory
Body Weight - Mean 5.5 mean body weight g Not Reported Adult 6 birds captured at Occidental College, Los Angeles Exposure Factor Datasets 0.2 SE Laboratory
Food Ingestion Rate 35.17 consumption of mealworms at 20 deg C kJ/d Not Reported Adult 6 birds captured at Occidental College, Los Angeles Exposure Factor Datasets 1.26 SE Laboratory
Citation:

Behavior of the bush-tit in the breeding season

Author(s)
Addicott, Alice B.
Pages
49-63
Year
Volume
40
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Time of Mating/ Laying Mar-Apr time of peak nesting activity Both Male and Female Adult Not Reported Stanford University Campus Exposure Factor Datasets Santa Clara
Territory Size approximate range of nesting territory diameters yd Both Male and Female Adult Not Reported Stanford University Campus Exposure Factor Datasets Santa Clara
Duration of Incubation or Gestation 13 incubation period from start to hatching d Not Reported Embryo 1 clutch Stanford University Campus Exposure Factor Datasets Santa Clara
Body Weight - Mean range of individual body weights g Not Reported Hatchling 2 birds Stanford University Campus Exposure Factor Datasets Santa Clara
Time of Fledging or Metamorphosis 14 age at which young left the nest d Not Reported Not Reported 1 brood Stanford University Campus Exposure Factor Datasets Santa Clara

Ensatina (Ensatina eschscholtzii), Loggerhead Shrike (Lanius ludovicianus)

Citation:

Patterns of growth and movements in a population of Ensatina eschscholtzii platensis (caudata: plethodontidae) in the Sierra Nevada, California

Author(s)
Staub, N.L., C.W. Brown and D.B. Wake
Pages
593-599
Year
Issue
4
Volume
29
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Countries Error
Growth Rate 0.092 change in snout-vent length measured between recaptures (>1000d) mm/d Female Adult Not Reported Calaveras Big Trees State Park (elev., 1400m) Exposure Factor Datasets Calaveras USA 0.0071

Loggerhead Shrike (Lanius ludovicianus)

Citation:

Longevity records of North American birds: Remizidae through Parulinae

Author(s)
Klimkiewicz, M. Kathleen, Roger B. Clapp and Anthony G. Futcher
Pages
287-294
Year
Issue
3
Volume
54
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Longevity 12-6 age of oldest identified banded individual yr-mo Not Reported Adult Not Reported Exposure Factor Datasets
Citation:

The effects of fencelines on the reproductive success of loggerhead shrikes

Author(s)
Yosef, Reuven
Pages
281-285
Year
Issue
1
Volume
8
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Clutch or Litter Size 3.8 average clutch size eggs/clutch Female Adult 64 clutches Archbold Biological Station Exposure Factor Datasets 0.8 SD
Duration of Incubation or Gestation range of average incubation periods, in two habitats, for successful nests d Not Reported Embryo 64 clutches Archbold Biological Station Exposure Factor Datasets
Age at Fledging, Metamorphosis, Weaning range of average nestling periods, in two habitats, for successful nests d Not Reported Fledgling 64 clutches Archbold Biological Station Exposure Factor Datasets
Hatching Success 1.8 average number of hatchlings per nest hatchlings/nest Not Reported Hatchling 64 clutches, 245 eggs Archbold Biological Station Exposure Factor Datasets 2.0 SD
Fledging or Weaning Rate 1.4 average number of fledglings produced per nest fledglings/nest Not Reported Fledgling 64 clutches, 245 eggs Archbold Biological Station Exposure Factor Datasets 1.7 SD
Clutches or Litters per year number of second clutches laid per season clutches/yr Both Male and Female Adult 27 pairs Archbold Biological Station Exposure Factor Datasets
Survival/ Mortality 13.0 estimated probability of an egg surviving to hatch in fenceline areas % Not Reported Embryo 39 clutches Archbold Biological Station Exposure Factor Datasets 0.2 SD
Survival/ Mortality 64.0 estimated probability of an egg surviving to hatch in pasture areas % Not Reported Embryo 25 clutches Archbold Biological Station Exposure Factor Datasets 30.1 SD
Survival/ Mortality 67.0 estimated probability of a nestling surviving to fledge in fenceline areas % Not Reported Nestling 39 clutches Archbold Biological Station Exposure Factor Datasets 1.8 SD
Survival/ Mortality 73.0 estimated probability of a nestling surviving to fledge in pasture areas % Not Reported Nestling 25 clutches Archbold Biological Station Exposure Factor Datasets 28.8 SD
Citation:

Reproductive success and nesting habitat of loggerhead shrikes in north-central South Carolina

Author(s)
Gawlik, Dale E. and Keith L. Bildstein
Pages
37-48
Year
Issue
1
Volume
102
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Clutch or Litter Size 5.3 mean clutch size, 2 years eggs/clutch Female Adult 20 nests York County Exposure Factor Datasets 0.6 SD
Clutches or Litters per year clutches/yr Both Male and Female Adult 49 nests York County Exposure Factor Datasets
Fledging or Weaning Rate 4.7 average number of fledglings produced per successful nest, 2 years fledglings/nest Not Reported Fledgling 32 nests York County Exposure Factor Datasets 1.3 SD
Hatching Success 4.4 average number of young hatched per nest, 2 years hatchlings/nest Not Reported Hatchling 37 nests York County Exposure Factor Datasets 1.8 SD
Citation:

Ptilochronology: A potential biomarker for assessing territory quality and habitat suitability in shrikes

Author(s)
Yosef, Reuven and Thomas C. Grubb, Jr.
Pages
276-279
Year
Volume
6
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Territory Size range of post-breeding territory size ha Not Reported Adult 21 territories Archbold Biological Station, Lake Placid Exposure Factor Datasets
Foraging Distance 6.5 maximum distance travelled from a fence post to a prey item on ground m Not Reported Adult 21 territories Archbold Biological Station, Lake Placid Exposure Factor Datasets
Foraging Distance 9.2 maximum distance travelled from a cabbage palm to a prey item on ground m Not Reported Adult 21 territories Archbold Biological Station, Lake Placid Exposure Factor Datasets
Citation:

The influence of habtitat degradation on the breeding ecology of loggerhead shrikes Lanius ludovicianus in the shrubsteppe region

Author(s)
Leu, Matthias and David A. Manuwal
Pages
136
Year
Issue
2
Volume
68
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Survival/ Mortality survival rate of juveniles prior to dispersal from the breeding territory % Not Reported Juvenile 36 nests Yakima Training Center Exposure Factor Datasets
Citation:

Nesting habits of the California shrike

Author(s)
Atkinson, William A.
Pages
9-11
Year
Volume
3
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Time of Mating/ Laying late Feb-early Apr period of egg laying Female Adult 1 pair, 4 years Exposure Factor Datasets Santa Clara
Clutch or Litter Size eggs/clutch Female Adult 9 clutches Exposure Factor Datasets Santa Clara
Citation:

Status of loggerhead shrikes in the sagebrush habitat of southwestern Idaho

Author(s)
Woods, Christopher P.
Pages
150-154
Year
Volume
6
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Population Density range of nesting density, 2 study areas Both Male and Female Adult 10-19 pairs/study area Ada, Elmore, Owyhee Counties Exposure Factor Datasets
Age at Sexual Maturity 1 yr Not Reported Adult 4 birds Ada, Elmore, Owyhee Counties Exposure Factor Datasets
Citation:

Nest ecology, productivity, and growth of the loggerhead shrike on the shortgrass prairie

Author(s)
Porter, David K., Mark A. Strong, J. Brent Giezentanner and Ronald A. Ryder
Pages
429-436
Year
Issue
4
Volume
19
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutches or Litters per year 1 clutches/yr Both Male and Female Adult 77 pairs Pawnee National Grassland Exposure Factor Datasets
Clutch or Litter Size 6.39 average clutch size, 4 years eggs/clutch Female Adult 77 pairs Pawnee National Grassland Exposure Factor Datasets
Duration of Incubation or Gestation 16 incubation period d Not Reported Embryo 330 hatched eggs Pawnee National Grassland Exposure Factor Datasets
Age at Fledging, Metamorphosis, Weaning 17 normal fledging period d Not Reported Fledgling 232 fledged birds Pawnee National Grassland Exposure Factor Datasets
Fledging or Weaning Rate 5.40 average number of fledglings produced per nest fledglings/nest Not Reported Fledgling 65 successful nests Pawnee National Grassland Exposure Factor Datasets
Hatching Success 5.69 average number of eggs hatched per successful nest eggs/nest Not Reported Hatchling 65 successful nests Pawnee National Grassland Exposure Factor Datasets
Citation:

Breeding ecology of Lanius ludovicianus nesting in sagebrush

Author(s)
Woods, Christopher P.
Pages
244-250
Year
Volume
6
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Time of Mating/ Laying Apr-mid Aug period from clutch initiations to chicks fledging Both Male and Female Adult 98 pairs Ada, Elmoor, Owyhee Counties Exposure Factor Datasets
Clutch or Litter Size 6.1 average number of eggs per clutch, 2 years eggs/clutch Female Adult 84 clutches Ada, Elmoor, Owyhee Counties Exposure Factor Datasets 0.8 SD
Fledging or Weaning Rate 5.1 average number of fledglings per sucessful pair fledglings/pair Not Reported Fledgling 65 pairs Ada, Elmoor, Owyhee Counties Exposure Factor Datasets 1.5 SD
Age at Fledging, Metamorphosis, Weaning age at which young left nests d Not Reported Fledgling 65 pairs Ada, Elmoor, Owyhee Counties Exposure Factor Datasets
Citation:

Nesting ecology of the loggerhead shrike in southwestern Oklahoma

Author(s)
Tyler, Jack D.
Pages
95-104
Year
Issue
1
Volume
104
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Time of Mating/ Laying late Feb (begin), April (peak) time of nesting activity Both Male and Female Adult 133 pairs Lawton, Comanche County Exposure Factor Datasets
Hatching Success 84 average percent of nests that hatched at least 1 young, 4 years % Not Reported Hatchling 133 pairs Lawton, Comanche County Exposure Factor Datasets
Fledging or Weaning Rate 60 average percent of nests that fledged at least 1 young, 4 years % Not Reported Fledgling 133 pairs Lawton, Comanche County Exposure Factor Datasets
Clutch or Litter Size 5.8 average clutch size, 4 years eggs/clutch Female Adult 101 nests Lawton, Comanche County Exposure Factor Datasets
Duration of Incubation or Gestation 16.9 average incubation period, 4 years d Both Male and Female Embryo 55 nests Lawton, Comanche County Exposure Factor Datasets
Age at Fledging, Metamorphosis, Weaning 16.8 d Not Reported Fledgling 28 nests Lawton, Comanche County Exposure Factor Datasets
Clutches or Litters per year clutches/yr Both Male and Female Adult 122 pairs Lawton, Comanche County Exposure Factor Datasets
Survival/ Mortality 64 overall nestling survival rate % Not Reported Nestling 90 nests Lawton, Comanche County Exposure Factor Datasets
Survival/ Mortality 46 calculated probability of survival of any nest from incubation onset to end of fledging % Not Reported Fledgling 109 nests Lawton, Comanche County Exposure Factor Datasets
Citation:

Dynamics of a loggerhead shrike population in Minnesota

Author(s)
Brooks, Bonnie L. and Stanley A. Temple
Pages
441-450
Year
Issue
3
Volume
102
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Clutches or Litters per year clutches/yr Both Male and Female Adult 48 pairs southern Minnesota Exposure Factor Datasets
Clutch or Litter Size 5.65 average clutch size, 2 years eggs/clutch Female Adult 46 clutches southern Minnesota Exposure Factor Datasets 1.17 SD
Hatching Success 4.18 average number of eggs hatched per nest hatchlings/nest Not Reported Hatchling 51 nests southern Minnesota Exposure Factor Datasets 2.33 SD
Fledging or Weaning Rate 3.02 average number of fledglings produced per nesting attempt fledglings/nest Not Reported Fledgling 60 nesting attempts southern Minnesota Exposure Factor Datasets 2.07 SD
Survival/ Mortality 0.47 annual adult survival (based on reoccupancy rate from the previous year), over 3 years Both Male and Female Adult 16-37 territories/year southern Minnesota Exposure Factor Datasets
Citation:

Habitat selection and breeding biology of loggerhead shrikes in eastern Ontario and Quebec

Author(s)
Chabot, Amy, Rodger D. Titman and David M. Bird
Pages
155-156
Year
Volume
6
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Countries
Clutch or Litter Size average clutch sizes, 2 years eggs/clutch Female Adult 27-52 pairs/yr eastern Ontario, Quebec Exposure Factor Datasets CANADA
Duration of Incubation or Gestation 17 average incubation period, 2 years d Not Reported Embryo 27-52 pairs/yr eastern Ontario, Quebec Exposure Factor Datasets CANADA
Hatching Success average number of hatchlings per nest, 2 years hatchlings/nest Not Reported Hatchling 27-52 pairs/yr eastern Ontario, Quebec Exposure Factor Datasets CANADA
Age at Fledging, Metamorphosis, Weaning d Not Reported Fledgling 27-52 pairs/yr eastern Ontario, Quebec Exposure Factor Datasets CANADA
Fledging or Weaning Rate average number of young surviving to fledge per nest, 2 years fledglings/nest Not Reported Fledgling 27-52 pairs/yr eastern Ontario, Quebec Exposure Factor Datasets CANADA
Clutches or Litters per year clutches/yr Both Male and Female Adult 27-52 pairs/yr eastern Ontario, Quebec Exposure Factor Datasets CANADA
Citation:

Resource dependence and territory size in loggehead shrikes (Lanius ludovicianus)

Author(s)
Yosef, Reuven and Thomas C. Grubb, Jr.
Pages
465-469
Year
Issue
2
Volume
111
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Territory Size 9.3 ha Both Male and Female Adult 10 pairs Archbold Biological Station, Highlands County Exposure Factor Datasets 3.8 SD
Fledging or Weaning Rate 1.1 mean number of fledglings produced per nesting attempt fledglings/nest Not Reported Fledgling 24 clutches Archbold Biological Station, Highlands County Exposure Factor Datasets
Clutch or Litter Size 3.8 mean clutch size eggs/clutch Female Adult 24 clutches Archbold Biological Station, Highlands County Exposure Factor Datasets 0.9 SD
Hatching Success 33.8 percent of eggs that produced hatchlings by the day after the first hatch % Not Reported Hatchling 24 clutches Archbold Biological Station, Highlands County Exposure Factor Datasets 47.6 SD
Body Weight - Mean 33.0 mean body weight of 10 day old nestlings g Not Reported Nestling 18 nestlings Archbold Biological Station, Highlands County Exposure Factor Datasets 2.6 SD
Clutches or Litters per year number of clutches laid per season per pair clutches/pair Both Male and Female Adult 10 pairs Archbold Biological Station, Highlands County Exposure Factor Datasets
Citation:

Effect of vegetation height on hunting behavior and diet of loggerhead shrikes

Author(s)
Yosef, Reuven and Thomas C. Grubb, Jr.
Pages
127-131
Year
Volume
95
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Territory Size 8.35 mean territory size in pasture habitat ha Both Male and Female Adult 6 territories Archbold Biological Station near Lake Placid Exposure Factor Datasets 0.66 SD
Dietary Composition Odonata (12.1), Hemiptera (23.0), Coleoptera (22.3), Lepidoptera (7.3), Orthoptera (16.8), Hyla cinerea (7.6), H. squirella (1.7), Gastrophyne carolensis (0.9), Rana spenocephala (0.4), Anolis carolinensis (2.8), Scincella lateralis (4.1), Eumeces inexpectatus (1.0) percent of total prey items caught by observed pairs % Both Male and Female Adult 6 territories Archbold Biological Station near Lake Placid Exposure Factor Datasets
Citation:

Nestling diet and prey-delivery rates of loggerhead shrikes (Lanius ludovicianus) in north-central South Carolina

Author(s)
Gawlik, Dale E., Joseph Papp and Keith L. Bildstein
Pages
1-5
Year
Issue
1
Volume
55
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Dietary Composition Orthoptera (59); Lepidoptera (15); Coleoptera (10); arthropod larvae (8); mammals; reptiles and amphibians (4); unident. arthropods (3) percent of total identified prey items delivered to the nest % Not Reported Nestling 1 pair, 155 identified prey York County Exposure Factor Datasets
Citation:

Densities of loggerhead shrike on study blocks in southeastern Alberta inventoried in both 1993 and 1996

Author(s)
Bjorge, Ronald R., and Henk P.L. Kiliaan
Pages
217-219
Year
Issue
4
Volume
55
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Countries
Population Density 90-96 range of densities over 2 sampling years individuals/ 12 study blocks Not Reported Adult 2 sample years southeastern Alberta Exposure Factor Datasets CANADA
Citation:

Loggerhead Shrike (Lanius ludovicianus)

Author(s)
Yosef, Reuven
Pages
1-27
Publisher
The Academy of Natural Sciences and The American Ornithologists' Union
Year
Issue
231
Exposure Endpoint Type Endpoint Value Life Cycle Stage Location Type Countries
Time of Migration or Dispersal review Exposure Factor Datasets CANADA, USA
Dietary Composition review Exposure Factor Datasets CANADA, USA
Metabolic Rate review Exposure Factor Datasets CANADA, USA
Territory Size review Exposure Factor Datasets CANADA, USA
Time of Nesting review Exposure Factor Datasets CANADA, USA
Duration of Incubation or Gestation review Exposure Factor Datasets CANADA, USA
Body Weight - Mean review Both Adults and Juveniles Exposure Factor Datasets CANADA, USA
Age at Fledging, Metamorphosis, Weaning review Exposure Factor Datasets CANADA, USA
Clutches or Litters per year review Exposure Factor Datasets CANADA, USA
Clutch or Litter Size review Exposure Factor Datasets CANADA, USA
Age at Sexual Maturity review Exposure Factor Datasets CANADA, USA
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