Results from anticoagulant rodenticide (AR) liver analysis for owls sampled in Texas, US between 2020 and 2022.

ID Number annotates the source of the specimen and unique identifier as follows: Biodiversity Research and Teaching Collections, Texas A&M University (TCWC), Last Chance Forever the Bird of Prey Conservancy (LCF), The University of Texas at San Antonio (UTSA) and Wildlife Rescue & Rehabilitation Inc. (WRR). Unit of measurement is ng/g wet weight; limit of detection for each compound was 0.10 ng/g and limit of quantification for each compound was 1.00 ng/g. Negative results are indicated by a dash (―); n/a represents a compound not tested for.