tree hollow

Owl's woodland home

A tree hollow is a cavity or hole in a tree, typically formed when decay follows damage to bark or branches.

Tree hollows provide crucial habitat for wildlife—owls, squirrels, possums, and countless other species nest or shelter in them.

The raccoon made its den in a tree hollow.

Older trees develop larger hollows, making old-growth forests particularly valuable for cavity-dwelling animals.

wildlife

owl

Nocturnal feathered predator

raccoon · kookaburra · bat · dormouse · treecreeper · nuthatch · parrot · hornbill · flying squirrel · sugar glider

shelter

den

Private room or lair

  • nestAnimal-built shelter for young
  • roostBird's sleeping spot
  • lairAnimal's hidden dwelling

drey · burrow · refuge · sanctuary · habitat · cavity · hideout · nesting · roosting · overwintering

ecology

cavity

Empty space within

  • decayGradual organic breakdown
  • rotOrganic breakdown process
  • fungusSpore-bearing organism

deadwood · snag · heartwood · trunk · branch · bark · knot · decomposition · ecosystem · microhabitat

mystery

hidden

Kept out of sight

concealed · treasure · discovery · curiosity · darkness · shadowy · obscured · unknown · exploration · tucked away

Categories
Opposites
habitat location

tree hollowburrow

Animal's dug dwelling

tunnel · warren · sett · earth · fox hole

structural void vs. solid

tree hollowsolid wood

Timber without composite layers

heartwood · solid core

structural formation

tree hollowburrow

Animal's dug dwelling

mound · beaver dam · termite mound

Family

tree, hollow, trees, hollowed, hollowness, hollowing, reforestation, reforest, treelike

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G