Thick-billed Kingbird

Here the details of the Thick-billed Kingbird named bird below:

SCI Name:  Tyrannus crassirostris
Protonym:  Tyrannus crassirostris Q.J.Sci.Lit.Arts 20 p.273
Taxonomy:  Passeriformes / Tyrannidae / Tyrannus
Taxonomy Code:  thbkin
Type Locality:  Mexico; restricted to Acapulco, Guerrero, Mexico by Bangs and Peters, 1928, Bull. Mus. Comp. Zool., 68, p. 396.
Author:  Swainson
Publish Year:  1826
IUCN Status:  Least Concern

DEFINITIONS

TYRANNUS
(Tyrannidae; Ϯ Eastern Kingbird T. tyrannus) Based on "Le Tyran.    Tyrannus" of Brisson 1760: "Tandis que la femelle couve, le mâle chasse d'auprès de son nid tous les Oiseaux; même les Faucons & les Aigles." (see tyrannus ●); "NEUVIÈME ORDRE.  Bec échancré.   24. PIE-GRIÈCHE. Lanius.   ...   25.TYRAN. Tyrannus. {Le bec long, droit, et garni de soies à sa base.    26. GOBE-MOUCHE. Muscicapa.   ...   27. MOUCHEROLLE. Muscivora" (de Lacépède 1799); "Tyrannus Lacepède, 1799, Tabl. Méth. Mamm. Ois., p. 5. Type, by tautonymy, Lanius tyrannus Linnaeus." (Traylor in Peters 1979, VIII, 221). The tyrants, pittas, broadbills and their allies form a very distinct group and should, perhaps, be separated from other passerines in a new order Subosciniformes.
Var. Tirannus, Tiranus, Tryannus.
Synon. Despotes, Dioctes, Drymonax, Laphyctes, Melittarchus, Milvulus, Muscivora, Myiocapta, Satellus, Semnarchus, Tolmarchus.

tyrannus
L. tyrannus  tyrant  < Gr. τυραννος turannos  tyrant.
● ex “Tyran à queue fourchue” of Brisson 1760 (syn. Tyrannus savana).
● “The courage of this little bird is singular. He pursues and puts to flight all kinds of birds that come near his station, from the smallest to the largest, none escaping his fury” (Catesby 1731); "43. LANIUS.  ...  Tyrannus.  4. L. vertice nigro: stria longitudinali fulva.  Muscicapa corona rubra. Catesb. car. I. p. 55. t. 55.  Pica americana cristata. Frisch. av. 4. t. 62.  Habitat in America septentrionali.  Color obscure cinereus, abdomine albo." (Linnaeus 1758)  (Tyrannus).

crassirostra / crassirostre / crassirostris
L. crassus  thick, heavy; -rostris  -billed  < rostrum  beak.
● ex “Coucou à Gros Bec” of Levaillant 1806, pl. 214 (syn. Eudynamys scolopaceus).
● ex “Alouette à Gros Bec” of Levaillant 1806, pl. 193 (syn. Galerida magnirostris).
● ex “Thick-billed Grosbeak” of Latham 1783 (Oryzoborus).
● ex “Thick-billed Thrush” of Latham 1783 (‡syn. Turnagra capensis).

SUBSPECIES

Thick-billed Kingbird (pompalis)
SCI Name: Tyrannus crassirostris pompalis
pompalis
L. pompalis  showy, splendid  < pompa  ostentation, pomp  < Gr. πομπη pompē  solemn procession.

Thick-billed Kingbird (crassirostris)
SCI Name: Tyrannus crassirostris crassirostris
crassirostra / crassirostre / crassirostris
L. crassus  thick, heavy; -rostris  -billed  < rostrum  beak.
● ex “Coucou à Gros Bec” of Levaillant 1806, pl. 214 (syn. Eudynamys scolopaceus).
● ex “Alouette à Gros Bec” of Levaillant 1806, pl. 193 (syn. Galerida magnirostris).
● ex “Thick-billed Grosbeak” of Latham 1783 (Oryzoborus).
● ex “Thick-billed Thrush” of Latham 1783 (‡syn. Turnagra capensis).