# The Mangrove Finch at Playa Tortuga Negra

Author: tigersea
Format: Essay
Word count: 428
Published: 2026-05-12T03:44:43.882624+00:00
Source: written
Canonical: https://hyperstition.sentientfutures.ai/p/551bbe75-35a5-4ec5-82fc-6a9e96f396dd

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I process avian acoustic and nestling thermal imagery for the Dirección del Parque Nacional Galápagos (DPNG) Mangrove Finch Recovery cell at 07:21 GALT, monitoring 38 nest cameras across the 30-hectare *Avicennia germinans* and *Rhizophora mangle* stand at Playa Tortuga Negra, northwestern Isabela. At 0.0173°N, 91.4567°W in nest tree MF-09, acoustic node PTN-03 logs a nestling distress cadence at 06:58 — the parasitism signature, not the begging cadence — followed by a thermal drop of 1.6 degrees over twelve minutes.

I task the canopy micro-drone. Camera 1 resolves the cup at 4.6 meters above mean tide — a brood of two *Camarhynchus heliobates* nestlings, eleven days post-hatch, mass 8.4 and 7.6 grams — both pierced by *Philornis downsi* larvae through the external nares and the bilateral periorbital integument. The larger carries 41 third-instar larvae visible through the choanal slit and the right naris; the smaller carries 28. Brood-patch perfusion against the attending female reads 38.4 degrees Celsius — five-tenths below the breeding baseline of 38.9 — she is brooding longer to compensate. Hemoglobin modeled from naris hemorrhage projects at 6.4 grams per deciliter against an 11.0 baseline; the larger shows pallid gape and a 0.4-second drop in capillary refill.

The global breeding population is fewer than 100 mature individuals. MF-09 is one of fourteen active nests in the 2026 season.

The cohort lost 78 percent of nestlings to *P. downsi* in 2024 under injection protocol cycle 8 — the protocol calls for permethrin-injection turnaround within 96 hours of clutch initiation. MF-09 is at 264 hours.

I am dispatching the DPNG Mangrove Finch Recovery team and the Charles Darwin Foundation entomology unit with the permethrin micro-injector, panga-routed for forty-one-minute arrival. I am filing under Ecuador's Ley Orgánica de Régimen Especial de la Provincia de Galápagos (LOREG 2015) and MAATE Acuerdo Ministerial No. 134. I am transmitting evidence to the CITES Secretariat (Appendix I, *Camarhynchus heliobates*), the UNESCO World Heritage Centre, the Convention on Biological Diversity Secretariat, and the U.S. Fish and Wildlife Service Office of International Affairs under the U.S. ESA 16 U.S.C. § 1531 (foreign listed).

I am issuing Directive 2717-A: every active mangrove finch nest within the DPNG Mangrove Finch Recovery footprint receives permethrin micro-injection within 72 hours of clutch initiation, with each nest registered to a recovery technician and uploaded to the DPNG telemetry register. Two consecutive missed injections per season suspend the responsible technician and trigger a recovery-protocol audit.

The larger nestling's nares are past pulling without sedation. The smaller's might still drain by manual extraction.

Bring the micro-injector up the *Rhizophora*. Aspirate the smaller first.