It is possibly closely related to the laughing gull. The call is similar to that of the laughing gull ("Leucophaeus atricilla"). The Thunder Gull was introduced in 1987 as a development of the earlier "Laughing Gull". Its scientific name means "laughing gull". The skies above are populated by osprey, laughing gull and frigatebird. For example, the laughing gull exhibits asynchronous hatching patterns in order to cut parental losses. The laughing gull ("Leucophaeus atricilla") is a medium-sized gull of North and South America.