TY - RPRT TI - Accounting for residual heterogeneity in double-observer sightability models decreases bias in burro abundance estimates AU - Jacob Daniel Hennig AU - Kathryn A. Schoenecker AU - James W. Cain AU - Gary W. Roemer AU - Jeffrey L. Laake PY - 2022 DO - 10.1002/jwmg.22239 UR - https://pubs.usgs.gov/publication/70246533 ID - 70246533 ER -