Olivaceous Woodcreeper

Here the details of the Olivaceous Woodcreeper named bird below:

SCI Name:  Sittasomus griseicapillus
Protonym:  Dendrocopus griseicapillus Nouv.Dict.Hist.Nat. 26 p.119
Taxonomy:  Passeriformes / Furnariidae / Sittasomus
Taxonomy Code:  oliwoo1
Type Locality:  Paraguay; based on ''trepadore palido y roxo'' of Azara; restricted to Concepcion del Paraguay by Hellmayr, 1925.
Author:  Vieillot
Publish Year:  1818
IUCN Status:  

DEFINITIONS

SITTASOMUS
(Furnariidae; Ϯ Eastern Olivaceous Woodcreeper S. griseicapillus sylviellus) Genus Sitta Linnaeus, 1758, nuthatch; Gr. σωμα sōma, σωματος sōmatos  body; "SITTASOMUS.   ...   Bill small, slender, straight, slightly notched; culmen rather curved.  Wings moderate.  Tail lengthened, rigid.   Type. Dend. sylviellus. Temm., Pl. col. 72. f. 1?   By this form the genera Oxyurus and Xenops appear to be brought together. It possesses the rigid scansorial tail of Dendrocolaptes, and the more feeble bill of Xenops." (Swainson 1827).
Var. Sittosomus.
Synon. Acanthurus, Sylosella.

griseicapilla / griseicapillus
Med. L. griseum  grey; L. -capillus  -capped  < capillus  hair of the head.
● ex “Trepadore palido y roxo” of de Azara 1802-1805, no. 244 (Sittasomus).

SUBSPECIES

Olivaceous Woodcreeper (Grayish)
SCI Name: Sittasomus griseicapillus [griseus Group]
SITTASOMUS
(Furnariidae; Ϯ Eastern Olivaceous Woodcreeper S. griseicapillus sylviellus) Genus Sitta Linnaeus, 1758, nuthatch; Gr. σωμα sōma, σωματος sōmatos  body; "SITTASOMUS.   ...   Bill small, slender, straight, slightly notched; culmen rather curved.  Wings moderate.  Tail lengthened, rigid.   Type. Dend. sylviellus. Temm., Pl. col. 72. f. 1?   By this form the genera Oxyurus and Xenops appear to be brought together. It possesses the rigid scansorial tail of Dendrocolaptes, and the more feeble bill of Xenops." (Swainson 1827).
Var. Sittosomus.
Synon. Acanthurus, Sylosella.

Olivaceous Woodcreeper (Pacific)
SCI Name: Sittasomus griseicapillus aequatorialis
aequatoriale / aequatorialis
Late L. aequatorialis  equatorial  < aequator  equator  < L. aequare  to make equal  < aequus  equal. Frequently given to species with a distribution in the equatorial latitudes of Africa (e.g. subsp. Jynx ruficollis, Sheppardia), but more commonly applied to birds from Ecuador (Spanish ecuador  equator) (e.g. Momotus, Thamnistes, Xiphorhynchus).
● Erroneous TL. Guayaquil (= Panama City) (subsp. Dendroica petechia).
● Erroneous TL. Guayaquil (= interior of Ecuador) (subsp. Falco sparverius).
● Erroneous TL. Ecuador (= Bahia, Brazil) (syn. Heliothryx aurita auriculata).
● Erroneous TL. Bogotá (= San Lucas, Ecuador) (subsp. Rallus limicola).

Olivaceous Woodcreeper (Amazonian)
SCI Name: Sittasomus griseicapillus [griseicapillus Group]
SITTASOMUS
(Furnariidae; Ϯ Eastern Olivaceous Woodcreeper S. griseicapillus sylviellus) Genus Sitta Linnaeus, 1758, nuthatch; Gr. σωμα sōma, σωματος sōmatos  body; "SITTASOMUS.   ...   Bill small, slender, straight, slightly notched; culmen rather curved.  Wings moderate.  Tail lengthened, rigid.   Type. Dend. sylviellus. Temm., Pl. col. 72. f. 1?   By this form the genera Oxyurus and Xenops appear to be brought together. It possesses the rigid scansorial tail of Dendrocolaptes, and the more feeble bill of Xenops." (Swainson 1827).
Var. Sittosomus.
Synon. Acanthurus, Sylosella.

Olivaceous Woodcreeper (Reiser's)
SCI Name: Sittasomus griseicapillus reiseri
reiseri
Dr C. H. Othmar Reiser (1861-1936) Austrian ornithologist, Curator of Natural History Mus., Sarajevo 1887-1920, collector in Brazil 1903 (syn. Alectoris graeca, syn. Cettia cetti sericea, subsp. Cranioleuca vulpina, subsp. Emberiza schoeniclus, subsp. Iduna pallida, syn. Oenanthe hispanica, Phyllomyias, syn. Prunella collaris subalpina, subsp. Sittasomus griseicapillus, syn. Turdus viscivorus deichleri).

Olivaceous Woodcreeper (Olivaceous)
SCI Name: Sittasomus griseicapillus sylviellus/olivaceus
SITTASOMUS
(Furnariidae; Ϯ Eastern Olivaceous Woodcreeper S. griseicapillus sylviellus) Genus Sitta Linnaeus, 1758, nuthatch; Gr. σωμα sōma, σωματος sōmatos  body; "SITTASOMUS.   ...   Bill small, slender, straight, slightly notched; culmen rather curved.  Wings moderate.  Tail lengthened, rigid.   Type. Dend. sylviellus. Temm., Pl. col. 72. f. 1?   By this form the genera Oxyurus and Xenops appear to be brought together. It possesses the rigid scansorial tail of Dendrocolaptes, and the more feeble bill of Xenops." (Swainson 1827).
Var. Sittosomus.
Synon. Acanthurus, Sylosella.