create implication brown-headed_gull (0) -> chroicocephalus (0)
create implication black-headed_gull (7) -> chroicocephalus (0)
create implication slender-billed_gull (0) -> chroicocephalus (0)
create implication bonaparte's_gull (0) -> chroicocephalus (0)
create implication saunders's_gull (0) -> saundersilarus (0)
create implication little_gull (0) -> hydrocoloeus (0)
create implication ross's_gull (0) -> rhodostethia (0)
create implication ivory_gull (0) -> pagophila (0)
create implication sabine's_gull (0) -> xema (0)
create implication swallow-tailed_gull (0) -> creagrus (0)
create implication larus (3) -> gull (1621)
create implication ichthyaetus (0) -> gull (1621)
create implication leucophaeus (0) -> gull (1621)
create implication chroicocephalus (0) -> gull (1621)
create implication saundersilarus (0) -> gull (1621)
create implication hydrocoloeus (0) -> gull (1621)
create implication rhodostethia (0) -> gull (1621)
create implication pagophila (0) -> gull (1621)
create implication xema (0) -> gull (1621)
create implication creagrus (0) -> gull (1621)