Williamson's Sapsucker

Here the details of the Williamson's Sapsucker named bird below:

SCI Name:  Sphyrapicus thyroideus
Protonym:  Picus thyroideus Proc.Acad.Nat.Sci.Philadelphia 5(1851) p.349
Taxonomy:  Piciformes / Picidae / Sphyrapicus
Taxonomy Code:  wilsap
Type Locality:  California, type from Georgetown, twelve miles from Sutter''s Mill, Eldorado Co.
Author:  Cassin
Publish Year:  1852
IUCN Status:  Least Concern

DEFINITIONS

SPHYRAPICUS
(Picidae; Ϯ Yellow-bellied Sapsucker S. varius) Gr. σφυρα sphura  hammer, mallet; Late Gr. πικος pikos  woodpecker  < L. picus  woodpecker; the sapsuckers drill rows of shallow holes in trees for the sap which then exudes; "SPHYRAPICUS, Baird.  Pilumnus, BON. Consp. Zygod. Ateneo Italiano, May, 1854. (P. thyroideus.)   ...   The genus Pilumnus, originally established by Bonaparte, is used in the Crustacea, and cannot, of course, be again employed. In supplying a new name, I consider the old Picus varius as the type instead of thyroideus, which may possibly constitute the type of a distinct genus" (Baird 1858). 
Var. Sphyropicus, Sphyrocopus (Gr. κοπος kopos  striking).
Synon. Campoborus, Cladoscopus, Pilumnus.

thyroideus
Gr. θυρεος thureos  large oblong shield  < θυρα thura  door; -οιδης -oidēs resembling.

SUBSPECIES

Williamson's Sapsucker (thyroideus)
SCI Name: Sphyrapicus thyroideus thyroideus
thyroideus
Gr. θυρεος thureos  large oblong shield  < θυρα thura  door; -οιδης -oidēs resembling.

Williamson's Sapsucker (nataliae)
SCI Name: Sphyrapicus thyroideus nataliae
nataliae
● Caroline Natalie Rosalie Kaup (b. 1835) daughter of German systematist Johann J. Kaup (subsp. Sphyrapicus thyroideus).
● Female eponym; dedicatee not yet identified (S. A. Buturlin 1929, Sistematicheskiye zametki o ptitsakh Severnogo Kavkaza, 15) (subsp. Turdus philomelos).