Yellow-rumped Eremomela

Here the details of the Yellow-rumped Eremomela named bird below:

SCI Name:  Eremomela gregalis
Protonym:  Malcorus gregalis S.Afr.Comm.Advertiser 4 no.213
Taxonomy:  Passeriformes / Cisticolidae / Eremomela
Taxonomy Code:  yerere1
Type Locality:  northern districts, Little Namaqualand; restricted to Husab, Swakop River, Damaraland, South West Africa, by Clancey, 1969, Durban Mus. Novit., 8, p. 307.
Author:  Smith, A
Publish Year:  1829
IUCN Status:  Least Concern

DEFINITIONS

EREMOMELA
(Cisticolidae; Ϯ Yellow-bellied Eremomela E. icteropygialis) Gr. ερημος erēmos  desert; μελος melos  song, melody; "23. Eremomela (n. g.) flaviventris ("Sylvia flaviventris Burch." Wahlb.) in schedulis   ...   Hab. in Caffraria superiore, campestri et sylvatica.   Char. generis.  Ala mediocris, vix fornicata, pennis 1—3 gradatis, prima brevi; 3=4.  Rostrum subulatum, acutum, vix incisum (fere Sylviæ trochili), vibrissis obsoletis; naribus Sylviæ.  Tarsi scutati; digiti laterales æquales.  Cauda brevior, leviter emarginata, pennis angustioribus.— Sp. inter Sylvias et Zosteropes mediæ; similes Acanthizis, sed minus pictæ.  A Phyllopneustis præcipue differunt vibrissis vix ullis, rostro acutiore, cauda breviore, linea superciliari non distincta, vel saltem non flava.  Radices nominis: Eρημος, desertum; μελος, carmen, hinc Eremomela, deserti cantor." (Sundevall 1850); "Eremomela Sundevall, 1850, Öfversigt K. Vetenskaps-Akad. Förhandlingar, Stockholm, 7, p. 102. Type, by original designation, Sylvia flaviventris Burchell [1822 nec Sylvia flaviventris Vieillot, 1817] = Sylvietta icteropygialis Lafresnaye." (Traylor in Peters, 1986, XI, p. 196).   
Var. Erenomela.   
Synon. Baeoscelis, Dryodromas, Eremomeloides, Magalilais, Tricholais.

gregalis
L. gregalis  sociable  < grex, gregis  herd.
• "Occasionally in pairs, usually in groups of 3-10." (Hockey, Dean & Ryan (eds.) 2005); "Usually seen in small groups." (Peacock 2012) (Eremomela).
• "GEOPELIA HUMERALIS GREGALIS, subsp. nov.  ...  Similar to Geopelia humeralis humeralis (Temminck) but darker above, especially the hind neck" (Bangs & J. Peters 1926); "Occurs singly, in pairs, groups and congregations which may number dozens of birds." (Coates 1985) (subsp. Geopelia humeralis).
• "It is said to form  large flocks that do not mix with other birds, and which move through the paddy fields with a whirring of the wings as they rise and settle." (Restall 1996) (syn. Lonchura malacca jagori).
• "234.  F. gregalis N.  Terr. Caffror.  F. supra fusco-purpurea, subtus vitellina gula nigrescente.  Rostrum validum s. d. Plocei  Longit. 6" . . . .E. 4 Thls." (Lichtenstein 1823); "In pairs; ♂ and ♀  stay together all year; occurs in family parties of up to 5; does not flock with conspecifics, but joins mixed-species flocks of insectivorous birds" (Fry & Keith (eds.) 2004) (syn. Ploceus bicolor).

SUBSPECIES

Yellow-rumped Eremomela (damarensis)
SCI Name: Eremomela gregalis damarensis
damarensis
Damaraland, Namibia.

Yellow-rumped Eremomela (gregalis)
SCI Name: Eremomela gregalis gregalis
gregalis
L. gregalis  sociable  < grex, gregis  herd.
• "Occasionally in pairs, usually in groups of 3-10." (Hockey, Dean & Ryan (eds.) 2005); "Usually seen in small groups." (Peacock 2012) (Eremomela).
• "GEOPELIA HUMERALIS GREGALIS, subsp. nov.  ...  Similar to Geopelia humeralis humeralis (Temminck) but darker above, especially the hind neck" (Bangs & J. Peters 1926); "Occurs singly, in pairs, groups and congregations which may number dozens of birds." (Coates 1985) (subsp. Geopelia humeralis).
• "It is said to form  large flocks that do not mix with other birds, and which move through the paddy fields with a whirring of the wings as they rise and settle." (Restall 1996) (syn. Lonchura malacca jagori).
• "234.  F. gregalis N.  Terr. Caffror.  F. supra fusco-purpurea, subtus vitellina gula nigrescente.  Rostrum validum s. d. Plocei  Longit. 6" . . . .E. 4 Thls." (Lichtenstein 1823); "In pairs; ♂ and ♀  stay together all year; occurs in family parties of up to 5; does not flock with conspecifics, but joins mixed-species flocks of insectivorous birds" (Fry & Keith (eds.) 2004) (syn. Ploceus bicolor).