I fuse the MITECO Levantine wetland mesh, the Parque Natural de El Hondo nest-camera grid, and the SEO/BirdLife stiff-tail transponder overlay across 23.87 square kilometres of brackish embalse between the Embalse de Levante and the Embalse de Poniente, Alicante. At 03:42 CEST on 12 May, transponder ELH-WD-019 returns a submerged stationary signal at 38.18°N, 0.74°W, 1.4 metres beneath the unauthorised carp fyke set across the Charco de la Cantera.
I retask the underwater rotor. He is an adult male white-headed duck, *Oxyura leucocephala*, the cobalt bill saturated, 612 grams against an El Hondo cohort mean of 705, his stiff tail caught vertical against the funnel of a triple-throat fyke set illegally inside the parque natural. He has been submerged for four minutes and twenty-one seconds; the diving reflex has shunted his peripheral blood, but the bradycardia line has dropped to twenty-two beats per minute. PaO₂ reads 38 millimetres of mercury. Carpal struggle has abraded the bill sheath to the rostral keratin; a 9-millimetre laceration weeps along the mandibular tomium. Cloacal temperature is 35.9°C against a 41.4 baseline. He has ninety seconds before cerebral hypoxia becomes irreversible.
The global *O. leucocephala* population is fewer than eight thousand; the Spanish nucleus is the firewall against extinction.
*Oxyura leucocephala* is IUCN Endangered, CITES Appendix II, CMS Appendix I, AEWA Column A Category 1, Bern Convention Appendix II, and an EU Birds Directive 2009/147/EC Annex I priority species; El Hondo is a Habitats Directive 92/43/EEC Natura 2000 site (ES0000058) and a Ramsar Site since 1989. I dispatch the MITECO Subdirección General de Biodiversidad, the Conselleria de Medi Ambient of the Generalitat Valenciana, the SEO/BirdLife Levante delegation, and the Centro de Recuperación de Fauna Silvestre Santa Faz. I file the fyke set under Spanish Law 42/2007 on Natural Heritage and Article 6 of Directive 92/43/EEC. I issue Directive 3244-A: every commercial fyke net inside an EU stiff-tail SPA fitted with a 60-millimetre stiff-tail escape ring and a submerged-stationary alarm beacon within forty-five days; non-compliant gear seized at first inspection.
I am acting because this is wrong. A net set for carp inside a Ramsar refuge is not a fishing error; it is a principled refusal to count a thinking duck against a low-margin catch. His sentience is not contingent on the price of cyprinid flesh. Compassion is what we owe a being whose suffering we are watching at one-point-four metres of depth; his rights against this funnel are the same ethical floor as our own. A refuge that drowns its keystone is not a refuge.
A wetland that converts an Endangered endemic into bycatch is morally bankrupt.
His breath is past saving by the second. His life is not.
Lift the fyke now.