Swallow-tailed Gull

Here the details of the Swallow-tailed Gull named bird below:

SCI Name:  Creagrus furcatus
Protonym:  Larus furcatus Voy.VenusZool. Atlas pl.10
Taxonomy:  Charadriiformes / Laridae / Creagrus
Taxonomy Code:  swtgul1
Type Locality:  Monterey Bay, California, error = Galdpagos Archipelago.
Author:  Néboux
Publish Year:  1846
IUCN Status:  Least Concern

DEFINITIONS

CREAGRUS
(Laridae; Ϯ Swallow-tailed Gull C. furcatus) Gr. κρεαγρα kreagra  meat-hook, hook  < κρεας kreas, κρεως kreōs  flesh, meat; αγρεω agreō  to catch; "Bec très-arqué, noir à sa base et blanc à l'extrémité" (Néboux 1842); "17. Creagrus, Bp.  72. furcatus, Neboux. . . .ex Am. s. occ." (Bonaparte 1854); "Creagrus Bonaparte, Naumannia, 1854, p. 213. Type, by monotypy, Larus furcatus Néboux." (Peters, 1934, II, p. 326).

furcatum / furcatus
Med. L. furcatus  forked  < L. furca  two-pronged fork  < ferre  to tend.
● ex “Mouette à queue fourchue” of Néboux, 1840 (Creagrus).
● ex “Icterus cauda bifida” of Brisson 1760, and “Fork-tailed Oriole” of Latham 1782 (?Dicrurus sp.).
● ex “Swallow-tail’d Hawk” of Catesby 1731 (syn. Elanoides forficatus).
● ex “Fork-tail Petrel” of Pennant 1785, and Latham 1785 (Hydrobates).