Mayotte Drongo

Here the details of the Mayotte Drongo named bird below:

SCI Name:  Dicrurus waldenii
Protonym:  Dicrurus waldenii Nederl.Tijdschr.Dierk. 3 p.86
Taxonomy:  Passeriformes / Dicruridae / Dicrurus
Taxonomy Code:  maydro1
Type Locality:  Mayotte Island.
Author:  Schlegel
Publish Year:  1865
IUCN Status:  Vulnerable

DEFINITIONS

DICRURUS
(Dicruridae; † Balicassiao D. balicassius) Gr. δικρος dikros  forked; ουρα oura  tail; "125. DRONGO, Dicrurus.  Lanius, Corvus, Linn. Gm. Lath.  Bec couvert de soies à la base, robuste; mandibule supérieure un peu carénée en dessus, échancrée et crochue vers le bout; l'inférieure aiguë et retroussée à la pointe. — Queue fourchue. — Rectrices 10.   Esp. Balicasse. — Fingah. — Drongo, Buff.  ...  Dicrurus [δικρους, furcatus, ουρα, cauda]." (Vieillot 1816); "Dicrurus Vieillot, 1816 (April 14), Analyse, p. 41.  Type, by subsequent designation, ["Balicasse" of de Buffon =] Corvus balicassius Linnaeus (G. R. Gray, 1841, List Gen. Birds, ed. 2, p. 47)." (Vaurie in Peters, 1962, XV, p. 138).   
Var. Dicruratus (probably an involuntary lapsus or portmanteau of specific combination Dicrurus longicaudatus Hay, 1868), Dicrourus, Dicturus (OD per Martin Schneider).   
Synon. Balicassius, Bhringa, Bhuchanga, Bonaparteis, Chaptia, Chibia, Cometes, Criniger,  Dicrachibia, Dicranostreptus, Dicruropsis, Dissemuroides, Dissemuropsis, Dissemurulus, Dissemurus, Drongo, Drongus, Drymonax, Edolius, Edoliuta, Entomoletes, Melisseus, Musicus, Notochibia, Prepopterus, Trichometopus.
• (Dicruridae; syn. Dicrurus † Black Drongo D. macrocercus) "Dicrurus (Auct)  Bhuchanga." (Hodgson 1841); "Dicrurus Hodgson, 1841, Journal Asiatic Soc. Bengal, X (1), (no. 109), p. 29.  Classical replacement name for Bhuchanga Hodgson, a local substantive name considered inappropriate by some." (JAJ 2020) (see Alcopus).

waldenii
Col. Arthur Hay Viscount Walden and 9^th Marquis of Tweeddale (1824-1878) British Army, traveller, naturalist (Dicrurus, syn. Tanysiptera ellioti).