❄️Hibernation: An extreme state of dormancy with extended periods of reduced metabolism to save energy, hibernation is utilized by some local warm-blooded animals such as short-eared bats, deer mice and bumble bee queens.
❄️Brumation: The same as hibernation but for cold-blooded animals such as frogs, toads, snakes, long-toed salamanders, and alligator lizards. A sheltered place where they hunker down to wait out winter is called a hibernaculum (see an example in this video).
❄️Torpor: Hummingbirds that do not migrate, like our Anna’s, can enter a modified hibernation, called torpor, when necessary. They regulate their heart rate and body temperature for varying periods of time, going into a sort of “standby mode” to conserve energy.
❄️Controlled circulation: Birds can conserve heat loss and protect themselves from freezing by regulating blood flow to their extremities via an amazing mechanism called “thermo regulation.” They also utilize “tucking”—pulling feet, legs, and heads under their feathers.
❄️Sheltering: Animals in the wild are experts at finding protection from storms. They bed down in dense shrub thickets and forests, nestle under the snow, hide inside hollow logs and rock crevices, and take refuge in dens and nests to wait out extreme conditions.