Natural History Calendar

Mammals

Marten peeking around tree

American Marten

American Marten breeding season (embryos delay implantation and development for 7 to 8 months).

Graphical depiction of the time range for this entry (see next paragraph for the text depiction).

(Late June through Early September)

Bison laying on hill

Bison

Bison breeding season.

Graphical depiction of the time range for this entry (see next paragraph for the text depiction).

(Late June through Late September)

Spotted whitetail

White-Tailed Deer

White-tailed fawns weaned by 10 weeks.

Graphical depiction of the time range for this entry (see next paragraph for the text depiction).

(Early August through Early September)

Whitetails

White-Tailed Deer

White-tailed fawns lose their spots.

Graphical depiction of the time range for this entry (see next paragraph for the text depiction).

(Late August through Late September)

Coyote running in field

Coyote

Coyote juveniles are dispersing.

Graphical depiction of the time range for this entry (see next paragraph for the text depiction).

(Early September through Late November)

Elk bugling

Elk

Elk breeding peaks.

Graphical depiction of the time range for this entry (see next paragraph for the text depiction).

(Mid-September through Late September)

Older beaver with young one both eating

Beaver

Beaver caching food for the winter.

Graphical depiction of the time range for this entry (see next paragraph for the text depiction).

(Late September through Late November)

Black Bear

Black Bear

Black bears are hyperphagic (eating excessively in an attempt to put on enough fat to survive winter hibernation).

Graphical depiction of the time range for this entry (see next paragraph for the text depiction).

(Late September through Late October)

Moose jumping fence

Moose

Moose breeding peaks.

Graphical depiction of the time range for this entry (see next paragraph for the text depiction).

(Late September through Early October)

Birds

American bittern walking near wetland

American Bittern

American bittern depart for their wintering grounds.

Graphical depiction of the time range for this entry (see next paragraph for the text depiction).

(Early September through Early October)