Larus is a large genus of gulls with worldwide distribution (by far the greatest species diversity is in the Northern Hemisphere).
The genus name is from Ancient Greek laros or Latin larus, which appears to have referred to a gull or other large seabird.

1/ European herring gull (Mòng bể chân vàng, Larus argentatus)
2/ Common gull or sea mew (Mòng bể đầu trắng, Larus canus)
3/ Black-tailed gull (Mòng bể đuôi đen, Larus crassirostris)