Gray-crowned Flycatcher

Here the details of the Gray-crowned Flycatcher named bird below:

SCI Name:  Tolmomyias poliocephalus
Protonym:  Rhynchocyclus poliocephalus Orn.Perou 2 p.285
Taxonomy:  Passeriformes / Tyrannidae / Tolmomyias
Taxonomy Code:  gycfly1
Type Locality:  Nauta, Peru.
Author:  Taczanowski
Publish Year:  1884
IUCN Status:  Least Concern

DEFINITIONS

TOLMOMYIAS
(Tyrannidae; Ϯ Yellow-olive Flycatcher T. sulphurescens) Gr. τολμα tolma, τολμης tolmēs  courage, boldness; Mod. L. myias  flycatcher  < Gr. μυια muia, μυιας muias  fly; πιαζω piazō  to seize; "Genus TOLMOMYIAS genus nov. ^a  ...  ^a Tolmomyias genus nov.  Type Platyrhynchus sulphurescens SPIX.  Similar to Rhynchocyclus, but bill relatively smaller and narrower, subterminal phalanx of middle toe entirely free from outer toe, and edge of outer web of outermost primary not roughened.  This group corresponds to Rhynchocyclus of Ridgway, but not of Cabanis and Heine who proposed the name as a substitute for Cyclorhynchus SUNDEVALL (preoccupied by KAUP) of which Platyrhynchos olivaceus TEMMINCK is the type. Craspedoprion HARTERT, thus, becomes a synonym of Rhynchocyclus, while a new genus has to be created for the reception of P. sulphurescens and allies." (Hellmayr 1927). The Yellow-olive Flycatcher often builds its nest in thorny acacias or near wasp-nests.

POLIOCEPHALUS
(Podicipedidae; Ϯ Hoary-headed Grebe P. poliocephalus) Specific name Podiceps poliocephalus Jardine & Selby, 1827. "FAM. COLYMBIDÆ.   Genus Podiceps. LATH.  ...  Pod. (Poliocephalus, SELBY) (1) Nestor.  Australia.  ...  (1) Mr. Swainson gives to this group a generic value, but we doubt whether it is even entitled to a subgeneric rank." (Selby 1840); "Poliocephalus Selby, Cat. Gen. Subgen. Types Av., 1840, p. 47. Type, by monotypy and tautonymy, Podiceps poliocephalus Jardine and Selby." (Peters 1931, 1, 35) (see nestor).
Var. Poliocephelus.
Synon. Colymbetes, Dasyptilus.

poliocephalus
Gr. πολιος polios  grey, grizzled; -κεφαλος -kephalos  -headed  < κεφαλη kephalē  head.
● ex “Grey-headed Cuckow” of Latham 1787 (Cuculus).
● ex “Ash-headed Thrush” of Latham 1801 (Turdus).

SUBSPECIES

Gray-crowned Flycatcher (poliocephalus)
SCI Name: Tolmomyias poliocephalus poliocephalus
POLIOCEPHALUS
(Podicipedidae; Ϯ Hoary-headed Grebe P. poliocephalus) Specific name Podiceps poliocephalus Jardine & Selby, 1827. "FAM. COLYMBIDÆ.   Genus Podiceps. LATH.  ...  Pod. (Poliocephalus, SELBY) (1) Nestor.  Australia.  ...  (1) Mr. Swainson gives to this group a generic value, but we doubt whether it is even entitled to a subgeneric rank." (Selby 1840); "Poliocephalus Selby, Cat. Gen. Subgen. Types Av., 1840, p. 47. Type, by monotypy and tautonymy, Podiceps poliocephalus Jardine and Selby." (Peters 1931, 1, 35) (see nestor).
Var. Poliocephelus.
Synon. Colymbetes, Dasyptilus.

Gray-crowned Flycatcher (klagesi)
SCI Name: Tolmomyias poliocephalus klagesi
klagesi
Samuel Milton Klages (1875-1957) US collector in tropical America 1898-1926 (Drymophila, subsp. Lophornis verreauxii, Myrmotherula, subsp. Taeniotriccus andrei, subsp. Thripadectes virgaticeps, subsp. Tolmomyias poliocephalus).

Gray-crowned Flycatcher (sclateri)
SCI Name: Tolmomyias poliocephalus sclateri
sclateri
● Dr Philip Lutley Sclater (1829-1913) English ornithologist, collector (subsp. Apalis cinerea, subsp. Asthenes wyatti, subsp. Attila spadiceus, Cacicus, syn. Campephilus gayaquilensis, subsp. Camptostoma obsoletum, syn. Casuarius casuarius, subsp. Cercomacra cinerascens, subsp. Chaetura cinereiventris, Chasiempis, subsp. Colinus leucopogon, syn. Crax fasciolata, syn. Cyanocorax affinis, Doliornis, Eudyptes, Euphonia (ex Bonaparte MS), subsp. Forpus modestus, subsp. Guttera verreauxi, syn. Heliomaster longirostris, subsp. Hirundinea ferruginea, subsp. Icterus pustulatus, Knipolegus, Lophophorus, Loriculus, subsp. Loxigilla noctis, Meliarchus, subsp. Monasa morphoeus, subsp. Myiarchus oberi, Myrmotherula, Myzomela, Nonnula, syn. Penelope barbata, subsp. Penelope montagnii, syn. Penelope obscura, Pheugopedius, Phyllomyias, Picumnus, syn. Pipreola chlorolepidota, syn. Plectropterus gambensis, Poecile, Pseudocolopteryx, syn. Rufirallus fasciatus, syn. Spinus magellanicus capitalis, subsp. Tachycineta euchrysea, subsp. Tangara aurulenta, syn. Tangara cabanisi, syn. Thamnophilus amazonicus, syn. Thraupis episcopus nesophilus, subsp. Thripadectes virgaticeps, subsp. Todirostrum cinereum, subsp. Tolmomyias poliocephalus, Vireo, subsp. Xiphocolaptes promeropirhynchus).
● William Lutley Sclater (1863-1944) English ornithologist (son of Dr Philip Lutley Sclater), Director of Cape Town Mus. 1896-1906 (syn. Apalis thoracica capensis, subsp. Caprimulgus climacurus, subsp. Cercotrichas leucophrys, syn. Chlidonias hybrida delalandii, syn. Cisticola galactotes amphilectus, subsp. Cyanomitra olivacea, subsp. Dendrocitta vagabunda, subsp. Monticola rufocinereus, subsp. Neomixis striatigula, syn. Ploceus bicolor stictifrons, Spizocorys, syn. Turtur afer).