Time of Mating/ Laying |
time of laying |
June - July |
Not Reported |
|
Adult |
Snake River Birds of Prey Area, southwestern ID |
|
Exposure Factor Datasets |
Dietary Composition |
% frequency of prey based on stomach contents and scats |
Townsend ground squirrel (10.6%); Mountain conttontail (11.6%); Deer mouse (43.3%); Ord kangaroo rat (5.8%); Great Basin pocket mouse (5.8%); Montane vole (9.6%); House mouse (6.7%); Other species (6.7%) |
104 prey items/455 snakes |
% |
Not Reported |
Snake River Birds of Prey Area, southwestern ID |
|
Exposure Factor Datasets |
Duration of Incubation or Gestation |
|
125 |
Not Reported |
d |
Adult |
Snake River Birds of Prey Area, southwestern ID |
|
Exposure Factor Datasets |
Dietary Composition |
% biomass of prey based on stomach contents and scat analysis |
Townsend ground squirrel (30.3%); Mountain conttontail (34.4%); Deer mouse (15.8%); Ord kangaroo rat (5.9%); Great Basin pocket mouse (1.7%); Montane vole (5.6%); House mouse (2.2%); Other species (4.1%) |
104 prey items/455 snakes |
% |
Not Reported |
Snake River Birds of Prey Area, southwestern ID |
|
Exposure Factor Datasets |
Age at Sexual Maturity |
|
3 |
Not Reported |
yr |
Adult |
Snake River Birds of Prey Area, southwestern ID |
|
Exposure Factor Datasets |
Time of Torpor or Hibernation |
|
Oct. - Apr. |
455 |
|
Not Reported |
Snake River Birds of Prey Area, southwestern ID |
|
Exposure Factor Datasets |
Body Weight - Mean |
|
11.5 |
9 |
g |
Neonate |
Snake River Birds of Prey Area, southwestern ID |
|
Exposure Factor Datasets |
Body Weight - Mean |
|
45.0 |
44 |
g |
Juvenile |
Snake River Birds of Prey Area, southwestern ID |
|
Exposure Factor Datasets |
Body Weight - Mean |
|
59.8 |
59 |
g |
Juvenile |
Snake River Birds of Prey Area, southwestern ID |
|
Exposure Factor Datasets |
Body Weight - Mean |
|
238.4 |
231 |
g |
Adult |
Snake River Birds of Prey Area, southwestern ID |
|
Exposure Factor Datasets |
Body Weight - Mean |
|
267.9 |
90 |
g |
Adult |
Snake River Birds of Prey Area, southwestern ID |
|
Exposure Factor Datasets |
Clutch or Litter Size |
|
6.9 |
20 |
eggs/clutch |
Adult |
Snake River Birds of Prey Area, southwestern ID |
3 - 11 |
Exposure Factor Datasets |
Time of Hatching or Parturition |
|
Oct. |
Not Reported |
|
Hatchling |
Snake River Birds of Prey Area, southwestern ID |
|
Exposure Factor Datasets |