Timing
39 results
- Timing · Movement and migrationYa Ha Tinda summer ranges split encounters from elk in the scatIn one Alberta elk herd, cougar risk ranked highest to the east, wolf and coyote risk at home, and bear encounters in Banff, where bear scats held elk less often.
- Timing · Movement and migrationMoose with more winter-range fire were likelier to leaveIn central British Columbia, collared cow moose with more winter-range fire were likelier to migrate, yet most migratory moose-years had no winter fire.
- Timing · Movement and migrationBighorn water visits peaked in hot months; lions came year-roundCameras at 105 waters, 2009 through 2016, caught most bighorn visits in four or five hot months. Sheep and lion visits were essentially unrelated at Mojave and Chihuahuan sites.
- Timing · Movement and migrationWyoming pronghorn crossed turbines and paused farther in springCollared Wyoming females kept migrating through wind facilities. Spring and winter stopovers sat farther from turbines. Fall routes ran closer than habitat predicted.
- Timing · Movement and migrationCold Nights and Long Routes Raised Montana Doe Migration OddsCollared does in three northwest Montana herds were more likely to leave summer range on colder nights, in wetter weeks and when their route was longer.
- Timing · Movement and migrationPredators matched on gobblers; harvest split by statePredators selected the same gobbler movement traits in Georgia and South Carolina. Harvest favored birds near access in Georgia and far from it in South Carolina.
- Timing · Movement and migrationChilko bull trout fed hardest on smolts and peak spawnIn the 2021 Chilko sample, 71% of spring fish with food and 47% of peak-spawn fish with food beat a modeled daily maximum. No summer fish did.
- Timing · Movement and migrationMale smallmouth nested closer than a random draw on one closed lakeOn one closed lake, returning males' mean moves were about 1,050 to 1,350 feet (320 to 412 m) shorter than a random draw. Six to 18 percent of them reused the exact nest.
- Timing · Movement and migrationAdrian fox squirrels tracked dawn and spent about 7 hours outSeasonal averages for 14 collared fox squirrels on a developed site in Adrian, Michigan, put the first nest exit 1.5 to 2.2 hours after dawn and time out of the nest near 7 hours.
- Timing · Movement and migrationA Third of Studied Mississippi Bucks Used Separate RangesTen of 30 GPS-tracked adult bucks on two Mississippi floodplains used separate ranges. A dated log can show a buck left and returned, not that he has a second range.
- Timing · Movement and migrationFarmland on potential paths went with longer dispersalIn a Minnesota collar study, natal farmland did not detectably predict which young deer left, but more farmland on potential paths went with longer dispersals.
- Timing · Movement and migrationShared range predicted which Illinois doe groups came closeIn Illinois GPS data, shared seasonal range best explained association between neighboring doe groups, with a Carbondale fawning exception and a weak rut crop signal.
- Timing · RutGPS bucks on rut excursions were back in 6 to 40 hoursOn a Maryland farm, 20 of 32 collared adult bucks left their range for a mean of 10.5 hours. Mississippi bucks made similar short trips, while a third of them kept a second range they moved to in any month.
- Timing · RutMature pen bucks lost a fifth of their weight with feed always availableAdult bucks in a South Dakota pen study ate far less at peak rut and lost 20 percent of their weight by mid-December with feed always there. Our rule is to hunt the best food left.
- Timing · Movement and migrationFemales den before male black bears, and nuts move the dateCollar and telemetry work puts females in dens before males. In northern Maine a scarce beechnut crop moved most females from mid to late November into mid to late October.
- Timing · Movement and migrationEarly dabblers leave near freezing while mallards wait for snowMissouri counts show pooled dabblers falling as days neared freezing while mallards held until a cold and snow score passed 7.2. Tagged mallards left most often after snow days.
- Timing · Movement and migrationShot ducks shift to closed water, and in Mississippi rest days added noneDanish refuge trials raised dabbling duck counts 4 to 50 fold. On three Mississippi areas four hunt days a week showed no detectable drop in ducks from two.
- Timing · Weather and windWinter scores flag fawn risk for the next fallMinnesota and Wisconsin score cold days and deep-snow days on different cutoffs. In collared Upper Peninsula does, the date the snow left mattered more to survival than the running score.
- Timing · RutPlatte bucks cast from December into April, so plan repeat shed walksFresh casts in central Nebraska averaged 9 to 13 March, yet casting ran from late December to a buck still antlered on 20 April. Colorado and Wyoming close some public land until May.
- Timing · RutTennessee elk bugled most from 23 September to 10 OctoberSeven recorders on one Tennessee WMA in 2021 caught the most bugles from 7 to 9 a.m. and 6 to 8 p.m. Oregon and Montana collar studies found hunters push elk away from open roads.
- Timing · Weather and windFall turnover evens lake temperature weeks before deep oxygen recoversOn a monitored Minnesota lake in 1998 temperature matched top to bottom by early November while deep oxygen sat near half of saturation. Near-full recharge came in December.
- Timing · Weather and windA rapid barometer fall is less than an inch of water to a fishThe weather service's rapid hourly fall equals about 0.82 inch of water while one foot of depth is 14.7 times that. A 2013 Lake Bemidji tank trial found no significant pressure effect on perch feeding.
- Timing · RutBuck Testosterone: Why His Routine Changes During the RutResearch on buck testosterone, local rut timing, age, feeding, and the difference between searching and breeding.
- Timing · RutHow Fewer Receptive Does Shape the Second RutHow fewer receptive does can concentrate second-rut activity and how to hunt current food sources, covered approaches and fresh breeding behavior.
- Timing · Movement and migrationYearling Buck Travel and Forest Share Across 575 Midwest CountiesA Penn State meta-analysis connects young bucks' travel distances with surrounding forest. Among counties with land-cover data, 443 out of 575 have forest shares below 35 percent, a category whose study areas had a 17.3-mile average.17.3 milesaverage young buck dispersal where forest cover is under 35%
- Timing · Weather and windOctober Slowdowns and Cold Fronts: Evidence From Deer Collars and 29,777 Archery KillsThe collar research we could examine offers little evidence of movement changes tied to cold fronts or temperature. Minnesota's 2025 archery records show much larger kill counts on Saturdays than Tuesdays. Across these files, clock time and calendar timing account for bigger differences than fronts.2.31×Saturday against Tuesday archery kills in Minnesota, October 2025
- Timing · Movement and migrationWhere Do Deer Go Under Pressure? Shifting Ranges, Protected Cover, and Places Hunters SkipAcross pre-rut and post-rut periods on a hunted property in South Carolina, a doe's range center shifted 90 meters, while a buck's shifted 685. Refuges raise another question: their value to nearby hunters depends on the amount of surrounding forest.685 metersshift in buck range centers, pre-rut to post-rut, South Carolina
- Timing · Weather and windHow Much Faith Should Deer Hunters Put in Weather Data?Temperature has the strongest evidence, drawn from one herd in South Carolina. Pressure showed opposing activity relationships across sexes and seasons. Cold-front samples remain too small to guide a sit. Changing the definition can space front alerts four days apart or ten days apart.0.57modeled daytime activity of breeding-season females at 50 F, 0.31 at 86 F
- Timing · Movement and migrationDeer Movement Scores vs. What the Collar Studies SupportCompare deer movement ratings and lunar claims against evidence from GPS collars. Learn what can be known about a day afield and where a scoring tool cannot give reliable answers.188collared bucks in a Wisconsin study with no significant weather effect
- Timing · RutWhy Day Length, Not Weather, Sets the Whitetail RutShorter days trigger a series of hormone changes that puts does in heat. Experiments, wildlife agency biologists and dates calculated from fetuses support that explanation. Cold fronts affect the activity hunters notice without shifting the timing of conception.200 daysaverage gestation used to date breeding backward from fawns
- Timing · RutWhitetail Breeding Dates by Latitude and StateFor Wisconsin, Pennsylvania and Illinois, breeding-date measurements cluster during early to mid-November. Across Florida, Mississippi and Texas, dates extend from August to February. Begin with the closest measured herd.13 Novemberpooled median for adult does in Pennsylvania, 1999 to 2006
- Timing · RutMoon Phase and the Rut: What Conception Dates ShowFetal data from Pennsylvania, Mississippi and New Brunswick show stable breeding dates as full moons shift by weeks. Collar research in Oklahoma and Mississippi found no lunar effect worth using to plan hunts.3,507pregnant Pennsylvania does examined for conception dates, 1999 to 2006
- Timing · Movement and migrationWhen Whitetails Move: What Collar Studies Say About Sunrise and SunsetCollar research in Michigan, Oklahoma and Wisconsin shows whitetails moving most at daylight's edges, including during the rut. The changes during peak rut, and the limits of what collars reveal about your wind.188collared bucks tracked through the rut in southwest Wisconsin
- Timing · Movement and migrationDeer Move Less by Day on Sunday Than Friday: An Alabama Collar StudyGPS-collared Alabama deer showed no weekend effect when days were grouped. Separating them revealed a 17 percent daylight movement decline between Friday and Sunday that lasted until Wednesday.−17%drop in daylight movement, Friday to Sunday, in an Alabama collar study
- Timing · Movement and migrationWhat Collar Studies Show Hunting Pressure Does to Whitetail MovementCollar research spans assigned levels of hunting that reduced movement and Georgia does that showed little response. The differences are not explained by hunter counts alone.37adult bucks tracked in a study with assigned hunting levels
- Timing · RutThe Rut Moves South: What Ohio's Weekly Data Says About TimingOhio's weekly county tallies show a modest, steady latitude difference: archery harvest centers roughly one to three days ahead near Lake Erie compared with the Ohio River.1.4 to 2.9 daysearlier archery peak in Ohio's Lake Erie counties than along the Ohio River
- Timing · Weather and windThe Wind You Can't See: Thermals and the Stand That Gets Busted on a Perfect WindForecasts show one wind arrow. Wherever there is a hill, another current follows the sun: up as ground warms, down as it cools. It routinely overrules planned wind, helping explain why careful hunters still get winded. The arrow omits it.
- Timing · Weather and windWhen to Trust Your Wind Forecast, and When It's LyingForecast wind arrows become measurably less dependable when the weather is calm, clear, and cold: the familiar perfect morning. Why forecasts for a single spot fail in the woods, and how to assess scent risk before heading in.45%of calm, clear nights had wind swing over 90 degrees off its usual direction
- Timing · RutStanding Corn and the Rut: How Harvest Timing Rewires MovementWhy deer stay in standing corn, how a newly cut field can change things in days, harvest timing from September through November or later, and how a county assessment gives you more than scouting from the road.40 acresof standing corn can hold a deer's food, bed and cover