Working papers

Working Paper 116 · Herd & HarvestVirginia · Black bear · Mast surveys · Harvest composition

Virginia Bear Harvest: Acorns and Season Timing

FDR Research Desk · Published Sources: State wildlife-agency public records and FDR analysis

Virginia’s records link mast conditions to the distribution of reported bear harvest among seasons. This paper reviews the historical groups, what the white-oak survey measures and the harvest table for 2025 to 2026. Those associations do not establish an individual hunter’s success.

KEY FINDINGS

  1. Archery made up more of Virginia’s bear harvest during poor-mast years in the earlier historical comparison. The later groups differed less.
  2. Surveyed crowns supply the white-oak acorn index. That index neither counts bears nor estimates the likelihood that a particular hunter will succeed.
  3. Differences in participation and season arrangements make comparisons harder. Scout locally before applying a statewide food measure to your hunt.

01How archery’s harvest share relates to food

An association in past records

Loaded oaks along your route and an empty neighboring ridge show the limits of a statewide report: it cannot identify the patch a bear currently uses. Virginia’s records provide a clue at a broader scale. Food conditions have shown an association with the division of reported bear harvest among hunting seasons.

According to the bear management plan from Virginia’s Department of Wildlife Resources, the average archery share was 31.7% of the bear harvest total for seven of the worst mast years during 1989 to 2010. For fourteen better-production years, that reported average was 18.6%. The denominator is harvested bears. It is not all hunters who attempted a hunt, with successful hunters as the numerator.

Figure 1: Historical proportions reported by the agencyPercentage of bear harvest attributed to archery
  1. 011989 to 2010 · Poor mast · 7 years31.7
  2. 021989 to 2010 · Better mast · 14 years18.6
  3. 032011 to 2021 · Worst oak mast · 3 years25
  4. 042011 to 2021 · Best oak mast · 3 years20
MEASURED: DWR supplies these values on printed page 45 of its management plan, corresponding to PDF page 51. Make comparisons inside each period. Group membership differs between periods; the bars neither form an uninterrupted yearly series nor test hunter success.

The plan identifies a weaker association over 2011 to 2021. Archery accounted for 25% of total bear harvest during the three poorest oak-mast years, versus 20% during the three strongest. DWR suggests that limited food could increase early foraging movement, whereas plentiful food could lessen movement needs and postpone den entry. In this plan, the cited account proposes a possible mechanism rather than measuring its effect on hunting success.

Some questions remain unanswered in that historical account. Adding seven years to fourteen gives twenty-one, but the calendar span from 1989 to 2010 contains twenty-two years. The cited account neither resolves the discrepancy nor states the weighting used for its group averages. Its description of the earlier groups also says mast years without limiting them to white oak. We use the published labels and do not rebuild the analysis.

02Understand what the acorn survey measures

The limits of the survey

For its white-oak chart, DWR reports route-average percent crown with acorns. This crown-based sample does not estimate acorn abundance per acre, food availability on your parcel or bear population size. In its acorn production account for 2023, DWR describes thirty-three hard-mast survey sites, predominantly in the mountains. The agency’s acorn production account for 2025 describes thirty-two sites. These observations come from surveyed routes rather than a complete count of Virginia’s oaks.

Swipe table to see every column

Survey yearWhite-oak annual indexSource scope
20233.3Value restated in the 2025 DWR report; 2023 chart corroborates
20248.6Value restated in the 2025 DWR report
2025222025 DWR report
SAMPLED: yearly index readings published from DWR hard-mast surveys. The reported unit is route-average percent crown with acorns. Confidence intervals accompany the native chart; this table contains only published yearly values. The captured material establishes neither the site count for 2024 nor the fieldwork dates.

Changes in the reported white-oak crop are visible in those yearly readings. A corresponding shift in bear numbers or encounters is not established. The earlier harvest analysis compares mast groups; the later survey table follows a single oak group. Combining the two would produce a forecast that these cited records have not tested.

03Know which bears each percentage includes

The reported 2025 to 2026 harvest

In DWR’s bear harvest report for 2025 to 2026, regulated hunting seasons account for 2,344 harvested bears. Archery season contributed 494, and the source reports its portion as 21.1%. This separate snapshot of a season does not validate the earlier mast comparison. Bears killed under permits or struck by vehicles are excluded from that harvest total.

Swipe table to see every column

SeasonReported bearsShare of total harvest
3-Day Early Firearms582.5%
Youth/Apprentice1014.3%
Archery49421.1%
Muzzleloader26411.3%
Firearms1,42760.9%
Total2,344100%
MEASURED: the DWR table covering regulated hunting seasons for 2025 to 2026. Each percentage retains the precision published by the agency. Rounding can put their combined total slightly above or below 100%. These season groupings provide no measure of hunter effort or individual success.

That report also estimates the hound-hunter contribution at 68.9% when the denominator includes seasons allowing hounds, versus 46.6% when it includes every bear season. Each denominator gives the estimate a different meaning. Neither figure expresses the chance that a hound hunter takes a bear. Neither substitutes for archery’s portion of the harvest total.

DWR discusses shorter seasons in areas affected by mange and identifies multiple possible influences on harvest patterns, including hunter movement and altered season length. Food conditions accompany those influences. These records cannot attribute a statewide harvest difference solely to mast.

04Let the mast report guide your scouting checks

How FDR reads these records

FDR interprets these records as a reason to use mast reports to prompt scouting. Where hunting is legal for you, inspect the oak crop itself and look for recent bear sign. Return to nearby feeding patches as those observations change. The route average supplies background; observations on your intended hunting ground tell you whether that background applies there.

FDR would not use these historical proportions to choose a weapon, estimate an individual’s success or deduce bear abundance. Consult the current DWR rules applicable to your specific area before choosing hunting dates or methods. Food conditions and harvest records are this paper’s subject. A current calendar of hunting seasons is not provided.

NOTES AND SOURCES

  1. Source: Virginia Department of Wildlife Resources, 2023 to 2032 Virginia Bear Management Plan. The committee packet dated October 25, 2023 contains the material on printed page 45, corresponding to PDF page 51. It supplies the historical group proportions and suggested explanation involving movement.
  2. Sources: DWR Acorn Production Reports for 2023 and 2025, covering yearly index readings, counts of survey sites and the crown-based measurement in the white-oak chart. The citation for the 2024 reading is the report published in 2025.
  3. Source: DWR’s Virginia Black Bear Harvest report for 2025 to 2026, including the original season table, which harvests it covers and the separate denominators for hound harvest. Retrieval date for every linked source: October 8, 2026.
  4. Agency harvest counts and summaries carry MEASURED labels; estimates from mast surveys carry SAMPLED labels. Using the records for scouting is FDR’s interpretation, without a tested predictive result. The analysis used no denominator for individual hunter effort.

Fully Drawn Research is an independent data analysis desk, not affiliated with any state wildlife agency, transportation agency, mapping provider or outfitter. Public records from Virginia DWR form the basis of this paper. Personal hunting success is not estimated, the upcoming mast crop is not forecast and hunting methods are not compared with effort held equal.

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