In the 2017–18 fishing year,


    
        there were
        301
        observed  captures of all petrels and other birds
    
    
    in trawl fisheries.
  
    Observed captures were of 
    white-chinned petrel (218), sooty shearwater (55), grey petrel (6), flesh-footed shearwater (4), Westland petrel (3), spotted shag (2), fairy prion (2), common diving petrel (2), Buller's shearwater (2), white-headed petrel (1), southern black-backed gull (1), grey-backed storm petrel (1), gadfly petrels (1), black-bellied storm petrel (1), Snares Cape petrel (1), and New Zealand white-faced storm petrel (1).
  


  
    It was estimated by a statistical model that there were a total of 
    748 (95% c.i.: 639&ndash;<wbr>887) captures
    
    in trawl fisheries.