Meaning of red-billed gull in English:

red-billed gull

noun

  • The silver gull, of New Zealand, Larus novaehollandiae, with red bill and feet; specifically one of the subspecies L. n. scopulinus of New Zealand.

    The South African form is now usually regarded as a separate species, L. hartlaubii.

Origin

Late 19th century; earliest use found in Walter Buller (1838–1906), ornithologist.