The taxonomy of the small albatrosses (also called mollymawks) has been changing over time and is still debated.
Mean number of smaller albatrosses recorded around fishing vessels during
counts carried out by government observers, binned to 0.4 degree of longitude and latitude. The size
of the circle indicates the number of observations, whereas the colour indicates the
mean number of birds recorded during counts. Empty circles indicate that no birds were observed. The grey
areas indicate water depths of less than 1000 m.