Gestation periods for local wildlife

SPECIES GESTATION BIRTH PERIOD LITTER SIZE YOUNG LEAVE NEST
Opossum 13 days Feb.-Nov. 5-25 Avg.9 3 mos
Rabbits 28-30 days Mar.-Sept. Peak May-June 2-10 2 weeks
Deer 190-210 days May-July 1-3 At Birth
Squirrel 44 days Feb.- Mar. Dec.- Jan. 3-5 7-8 weeks
Ground Squirrel 28 days May 7-10

6 weeks

Chipmunk 31 Days May-August-September 3-5 8 weeks
Groundhog 31-32 days May 2-7 Avg. 4-5 9-11 weeks
Muskrat 22-30 days Mar.-Sept. 1-11 Avg. 6 15 days
Beaver 128 days Apr.-June Peak May 1-8 Avg. 4 At Birth
Porcupine 7 months April-May 1 3-4 mos
Skunk 63 days May 2-10 Avg. 6 6-8 weeks
Raccoon 63 days Mar.-June Peak Apr.-May

2-7

Avg. 4

2 mos
Gray Fox 51 days Apr.-May Peak Apr. 3-5 Avg.4 4-5 weeks
Red Fox 51 days Mar.-Apr. 4-9 1 month
Least Weasel 205-357 days any month 3-10 Avg.4-5 9-10 weeks
Longtailed Weasel 205-337 days May-Apr. 4-8 7-8 weeks
Mink 39-76 days Apr.-May 2-10 Avg.6 9-10 weeks
Otter 285-300 days Apr.-May 1-5 Avg. 2 4-5 mos
Bobcat 50-60 days any month 1 autumn
Coyote 60-63 days Apr.-May 5-10 3 weeks
Badger 42 days Feb.-Mar. 2-5 2 mos
Big Brown Bat 50-60 days May-July Avg.1-2 Max.4 3-4 weeks
Little Brown Bat 50-60 days May-July Avg. 1-2 Max.4 3-4 weeks