Evidence item

The report directly states the 1,003-owl sample, exposure decline, vitamin D3 detection rate, and all-rodenticide prevalence. DATASET_RESULT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 19752

Source: Largest-ever study of its kind shows California’s rodenticide restrictions are working, and flags new rodenticides rising in their place · locator {} · excerpt hash sha256:8a8a738eb0fba90057b830690334fbb103427e72cef00584ad22a5141c0085a9

Exact excerpt

The study ... analyzed liver tissue from 1,003 Barred Owls collected across northwestern California between 2019 and 2025. Among young owls sampled in the study area, exposure to ... second-generation anticoagulants, fell from about 50% of birds in 2019 to about 20% in 2024. ... cholecalciferol (vitamin D3) ... turned up in nearly one in five owls (18.5%) ... Overall, when all rodenticides were counted, as much as 46% of the owls sampled carried at least one rodenticide compound.

Linked claims

Claim	Direction	Relevance	Steps	Counted
8b5c9718	SUPPORT	DIRECT	0	yes

Audits

None.