avian_predation_estimates.RdThis dataset combines avian predation rate estimates (with 95 This dataset corresponds to **Table 2**, **Table 3**, **Table 4** of the *Avian Predation on Upper Klamath Basin Suckers: Summary Report 2021–2023*. This dataset compiles avian predation estimates alongside PIT‑tag availability and recovery information for juvenile fishes released in the Upper Klamath Basin between 2021 and 2023. It includes PIT‑tagged Sucker Assisted Rearing Program (SARP) juvenile suckers, wild juvenile suckers, and hatchery‑reared juvenile Chinook Salmon.
avian_predation_estimatesA tibble with 39 rows and 16 columns
location: Waterbody or colony area where piscivorous waterbirds nested and where PIT tags were recovered (upper klamath lake, clear lake reservoir, sheepy lake)
species: Fish species associated with each release group (e.g. sucker, chinook salmon)
life_stage: Fish life stage (e.g. juvenile, adult)
origin: Origin of realeased fish (e.g. hatchery, wild)
release_season: Season when fish were realeased (e.g. spring_summer, fall_winter)
sarp_program: Whether fish are part of the Sucker Assisted Rearing Program (SARP) (e.g. TRUE, FALSE)
year: Year (2021–2023)
percent_estimate: Estimated predation rate ( researcher successfully detecting that tag. Predation estimates are adjusted to account for PIT tag detection and deposition probabilities that were unique to each predator species, colony, and year
lower_ci_pct: Lower 95
upper_ci_pct: Upper 95
number_adults_tagged: Total number of PIT-tagged fish (both adults and juveniles) present in the study area and considered "available" to avian predators during the specified year
number_recovered_tags: Raw count of physical PIT-tags recovered on piscivorous waterbird colonies during the 2021–2023 breeding seasons.
Bird Research Northwest (2023) [Avian Predation on UKB Suckers 2021–2023 Summary Report](https://birdresearchnw.org/brn-publications/avian-predation-on-ukb-suckers-summary-report-2021-2023/)