Ferguson, M. C.. Geographically Stratified Abundance Estimate for Bering-chukchi-beaufort Seas Bowhead Whales (balaena Mysticetus) from an August 2019 Aerial Line-transect Survey in the Beaufort Sea and Amundsen Gulf. Alaska Fisheries Science Center (U.S.), 2021, doi:10.25923/rc7a-qm08.