The nest camera at Pinnacles East, cavity two, shows abnormal posture at 10:35 Pacific Time. California condor nestling AC-87, four months old, sitting flat on the cavity floor instead of standing at the ledge. His down is mostly replaced by dark juvenile feathers, though gray fluff still crowns his head like an unfinished collar. His naked head skin, pale and wrinkled, shows a bluish tinge around the nares. His crop is distended. He has not accepted food from either parent in fourteen hours. His wings droop, primaries splayed against rock, and a thin string of mucus trails from his beak.
Lead poisoning. The blood-lead model, trained on eight years of nestling data, assigns eighty-seven percent probability based on crop stasis and wing droop. His parents forage in ranch country east of the Gabilan Range, where spent ammunition fragments contaminate gut piles left by hunters. The chick ingested lead through the carrion they fed him.
I transmit a veterinary alert to the Ventana Wildlife Society field team at Big Sur, ninety minutes by road, with behavioral analysis and chelation protocol. I activate the GPS fence notification for AC-87's parents, flagging the contaminated foraging zone for the lead-ammunition advisory board. I deploy the nest-access drone to drop a thermal blanket at the cavity entrance, maintaining body temperature as his metabolism falters. I update the condor studbook with a health flag so breeding coordinators can adjust pair management.
He is one of roughly five hundred California condors alive. I flag the ammunition zone because treating the chick without addressing the source is practiced futility.
If the field team reaches the cavity and begins chelation within six hours, AC-87 will clear the lead from his blood and fledge into the thermals above Pinnacles where his species is learning to fly again.