https://www.usgs.gov/publications/seasonal-abundance-and-behavior-black-brant-branta-bernicla-nigricans-humbolt-bay
Seasonal abundance and behavior of black brant (Branta bernicla nigricans) on Humbolt Bay,...
Abstract has not been submitted
https://it.wikipedia.org/wiki/Branta_bernicla
Branta bernicla - Wikipedia
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