10/18/2026
🦌🌳 ALL ACORNS AREN’T CREATED EQUAL.
You found oaks. You found acorns. But are you finding the ones deer are feeding on?
White oak acorns generally contain fewer tannins than red oak acorns. Tannins contribute bitterness and astringency and can affect how animals digest food. That helps explain why white oaks get so much attention from deer hunters.
But the familiar “white oaks first, red oaks later” rule leaves out some important details.
🌰 Deer eat acorns from both groups. Higher tannins do not make red oak acorns worthless. They still provide valuable energy.
🌰 Bur oak is an exception worth knowing. It belongs to the white oak group, yet researchers have documented high tannin concentrations in its acorns. “White oak” does not automatically mean low tannins.
🌰 One species does not have one fixed tannin percentage. Published results vary, and different laboratory methods do not necessarily measure the same thing. A precise-looking chart can be misleading.
🌰 Timing matters. Many eastern white oak acorns begin germinating in fall, while many red oak acorns remain dormant until spring. Acorn availability changes as nuts fall, germinate, deteriorate, or get eaten.
That’s why this chart uses qualified tannin descriptions instead of assigning every species an exact “acid content.” This is a tannin guide—not a pH chart or a universal deer preference ranking.
For scouting, start with the tree, then check the evidence: current acorn production, sound kernels, fresh tracks, droppings, and observations of deer actually feeding. A camera showing a deer walking past an oak tells a different story than repeated feeding visits.
A producing red oak with fresh deer activity deserves more attention than a white oak with nothing underneath it.
Which oak gets the most deer attention where you hunt—and what state are you in?
Research: USDA Forest Service species reviews, university extension resources, and published studies on acorn chemistry and wildlife feeding.
— Big Buck Registry