Secondary datasets used for analysis in "Using low-fix rate GPS telemetry to expand estimates of ungulate reproductive success". Raw GPS relocation data are not publicly available due to potential ethical implications but are available from the corresponding author (Nathan Hooven, nathan.d.hooven@gmail.com) upon reasonable request. Datasets include: elk_days_part.csv: generated movement metrics and days from parturition for all cow elk for which reproductive success was confirmed elk_np.csv: generated movement metrics for non-parturient cow elk elk_unknowns.csv: generated movement metrics for cows with unknown reproductive status, but were confirmed pregnant in mid-winter elk_thisyear.csv: generated movement metrics for 2020 Vectronic cows monitored in 2021 Part_dates.csv: Confirmed and predicted dates of parturition for all elk in training and testing sets all_prob_summary_parturient.csv: Confirmed and predicted dates of parturition and differences for confirmed successful elk Decision rules 1.xlsx: Spreadsheet with classification accuracy based upon varying decision rules Decision rules 2.csv: Plottable summary of classification accuracy based upon varying decision rules