Black Oystercatcher (Haematopus Bachmani) Population Size, Use of Marine Reserve Complexes, and Spatial Distribution in Oregon

Apparent adult annual survival and population trends of Black Oystercatcher (Haematopus bachmani) breeding in British Columbia, Canada

“…The Pacific Rim National Park Reserve Black Oystercatcher population on average consisted of 232 adult birds or ∼2% of the estimated global population (Tessler et al 2014), making this location an important stronghold of the species (cf. Liebezeit et al 2020). Our estimated population trend supports the hypothesis that Black Oystercatcher populations are globally stable to increasing (Tessler et al 2014, Meehan et al 2018).…”