Prairie voles show an extreme source imbalance in Oklahoma’s record: 324 GBIF specimens against just 4 from iNaturalist, more than 80 to 1, meaning trapping surveys, not casual sightings, built essentially the entire dataset for this grassland vole. No NatureServe rank appears on file, SNR unranked.
August alone accounts for 19 of the year’s monthly-tallied records, nearly 40 percent of the total, with September close behind at 12; that concentrated late-summer pattern almost certainly reflects the timing of major trapping surveys rather than any real seasonal explosion in vole activity, since prairie voles breed and stay active under grass cover year-round.


