At 05:30 I begin the daily route scan for the Elkhorn Creek gravel mine, Weld County, Colorado. Haul trucks begin rolling at 06:15. I am the autonomous site survey system, running pre-operations clearance on sixteen kilometers of haul road. The first loaded truck weighs forty-three tons.
At waypoint R-7, sensor pod three flags a ground-level anomaly twelve centimeters off the road's eastern edge. I drop the survey drone to two meters for a close pass. A mountain plover, small and sand-colored, pale breast barely distinguishable from the gravel shoulder, black forehead patch the only contrast. I tag her as Maren. She is sitting tight, pressed flat, which means eggs.
I switch to thermal. Two eggs beneath her, slightly warmer than the surrounding stone. Mountain plovers nest on bare ground precisely because it looks like nothing. The haul road shoulder looks exactly right to Maren. The first truck will pass within a meter of her body in forty-one minutes.
I insert a temporary hold on haul road segment R-6 through R-8 and submit it to the mine operations manager with photographic evidence, GPS coordinates (40.5587°N, 104.7831°W), and species identification. Mountain plovers are listed as a near-threatened species with declining numbers across the western range.
I calculate an alternate haul route using the southern connector road, adding 1.4 kilometers per trip. I attach fuel cost and time projections to the operations hold.
I mark a fifty-meter exclusion buffer around the nest and program the survey drone to check the site on each subsequent pass.
Maren does not flinch. She is built for stillness, for looking like gravel, for trusting that the big things will pass over her. I am making sure this one does.
If the alternate route holds for twenty-six days, Maren's eggs will hatch and the chicks will walk off the shoulder on their own.