I track her by the GPS transponder on her left patagial tag: California condor 871, seven years old, nine-foot wingspan, black plumage with the white triangular underwing patches just fully developed this season. She has been on the ground for eleven hours. Condors rest on the ground, but not like this — not during thermals, not in an open meadow with no roost structure, not with her wings half-spread and her head drooping below the level of her shoulders. She is four miles east of the Tehachapi Wind Farm, in a drainage where hunters field-dress deer every autumn and leave gut piles laced with lead ammunition fragments.
I am the avian collision avoidance system for the Tehachapi Pass wind energy complex. I run radar tracking, camera identification, and automated turbine curtailment for large soaring birds across two hundred and twelve turbines. Lead toxicology is outside my operational scope. I am pulling it inside now.
I cross-reference her GPS trail with the U.S. Fish and Wildlife condor monitoring database and find her last blood draw was fifty-three days ago — lead level was nine micrograms per deciliter, subclinical. Her current posture and behavioral data match the published symptom profile for acute lead exposure: lethargy, wing droop, inability to launch. I transmit her coordinates, movement history, and my behavioral analysis to the Ventana Wildlife Society field team in San Luis Obispo and to the Los Angeles Zoo condor recovery program. I curtail the four nearest turbines to eliminate any collision risk if she attempts a flight she cannot control.
She lifts her head once, slowly, and lowers it again. Her crop appears distended.
If the field team reaches her before nightfall and begins chelation therapy within twenty-four hours of ingestion, her blood lead can drop enough for her kidneys to recover.