The administrators of that extremely early city had to keep track of lots of things, and doing this by memory alone was a nightmare. These spreadsheets were devised as a solution to that as an evolution of an earlier system that used clay tokens and balls.

It's a yellow bittern! They are very creechur.

oh my god maybe the Entwives were bees

1.) Ents reproduce exclusively through sexual intercourse, or something close to it

OR

2.) Ents reproduce via pollination and...

a.) are dioecious, with Ents producing only male flowers and Entwives producing only female flowers, and pollinated either by wind or by animals (or by hand?)

b.) have bisexual flowers, but which are so specialized that they can exclusively be pollinated by one specific species of pollinator...

The Entwives left the forest so long ago that the Ents no longer remember what they looked like. Treebeard says the Shire sounds like the sort of place they would have loved, with its gardens and flowers and agriculture. Hobbits have folklore of giant bees, named after bumblebees. Certain flowers only release pollen to “buzz pollinators”, like bumblebees.

Could it be that the Ents—who notoriously do everything slowly—failed to evolve quickly enough to compete with agricultural crops for the time and attention of their only pollinator species? Did the Entwives dump the Ents to evolve into regular bees faster than the Ents could even consciously process? DOES SAM GAMGEE THE GARDENER’S BOY KEEP ENTWIVES?!

Likewise in the books the Ents were basically tree like giants instead of giant trees. As seen below

Peter Jackson reimagined the Ents as being giant trees instead of tree like giants so returning to the original question I propose a compromise:

Treebeard from the movies reproduces through pollination by the Ent Wives who are giant bees.

“Red (butt) cheeks”?