globally threatened 28%: critically endangered 5% %
||Friesen MR, Beggs JR1, Gaskett AC1. Sensory-based conservation of seabirds: a review of management strategies and animal behaviours that facilitate success. Biol Rev Camb Philos Soc. 2017 Aug92(3):1769-1784. doi: 10.1111/brv.12308 p.1770 left column bottom paragraphPubMed ID27807946
||Croxall, J. P., Butchart, S. H. M., Lascelles, B., Stattersfield, A. J., Sullivan, B., Symes, A. & Taylor, P. (2012). Seabird conservation status, threats and priority actions: a global assessment. Bird Conservation International 22, 1–34
||Primary source abstract: "[Investigators] review the conservation status of, and threats to, all 346 species of seabirds, based on BirdLife International’s data and assessments for the 2010 IUCN Red List."
||P.1770 left column bottom paragraph: "Seabirds are excellent candidates for sensory‐based conservation because they employ a range of sensory modes, display complex behaviours and cognition (Schreiber & Burger, 2001), and are often highly threatened (Croxall et al., 2012, IUCN, 2014, Paleczny et al., 2015). Seabirds have experienced steep recent population declines – 28% of the ∼347 seabird species are globally threatened and 5% are critically endangered (primary source)."