_Halcyon cinnamomina_ Swainson, Zool. Illustr., 2, 1821, text to
pl. 67. (No type locality = Guam.)
_Halcyon cinnamomina_ Hartlaub, Journ. f. Ornith., 1854, p. 167
(Marianen = Guam); Gray, Cat. Birds Trop. Is. Pacific Ocean, 1859,
p. 5 (Ladrone or Marian Islands = Guam); Sharpe (part), Monogr.
Alced., 1868-71, pp. xxxii, 213, pl. 80 (Guam); Gray, Hand-list
Birds, 1, 1869, p. 93 (Mariannes = Guam); Oustalet, Le Nat., 1889,
p. 260 (Mariannes = Guam); Wiglesworth, Abhandl. und Ber. Zool.
Mus. Dresden, no. 6, 1890-1891 (1891), p. 16 (Guam); Oustalet,
Nouv. Arch. Mus. Hist. Nat. Paris, (3), 7, 1895, p. 175 (Guam);
Hartert, Novit. Zool., 5, 1898, p. 53 (Guam); Matschie, Journ. f.
Ornith., 1901, pp. 112, 113, 114 (Guam); Wharton, Ecol. Monogr.,
16, 1946, p. 174 (Guam); Strophlet, Auk, 63, 1946, p. 538 (Guam);
Baker, Condor, 49, 1947, p. 125 (Guam).
_Alcedo ruficeps_ Dumont, Dict. Sci. Nat., 29, 1823, p. 273
(Mariannes = Guam); Pucheran, Rev. et Mag. de Zool., 1853, p. 387
(Mariannes = Guam); Hartlaub, Journ. f. Ornith., 1855, p. 423
(Mariannen = Guam).
_Dacela ruficeps_ Lesson, Traité d'Ornith., 1831, p. 247
(Mariannes = Guam).
_Halcyon cinnamomeus_ Kittlitz, Obser. Zool., in Lutké, Voy. "Le
Séniavine," 3, 1836, p. 304 (Guahan).
_Dacelo cinnamomina_ Kittlitz, Denkw. Reise russ. Amer. Micron.
und Kamchat., 2, 1858, p. 131 (Guahan); Schlegel, Mus. Pays-Bas,
3, no. 17, 1863, p. 39; no. 39, 1874, p. 29 (Mariannes = Guam);
Giebel, Thes. Ornith., 2, 1875, p. 3 (Mariannae = Guam).
_Todiramphus cinnamominus_ Cassin, U. S. Expl. Exped. 1838-'42,
1858, pp. 220, 225 (Ladrone or Marianna Islands = Guam).
_Sauropatis cinnamomina_ Cabanis, Mus. Hein., 2, 1859-'60, p. 159
(Marianen); Salvadori (part), Ornith. Papuasia, 1, 1880, p. 481
(Marianne = Guam).
_Halcyon cinnamominus_ Finsch (part), Journ. Mus. Godeffroy, 12,
1876, pp. 17, 20 (Marianen = Guam); Sharpe, Cat. Birds British
Mus., 17, 1892, p. 259 (Marianne = Guam); Seale, Occ. Papers
Bernice P. Bishop Mus., 1, 1901, p. 45 (Guam); Safford, Osprey,
1902, p. 69 (Guam); Dubois, Syn. Avium, 1, 1902, p. 108 (Guam);
Safford, The Plant World, 7, 1904, p. 263 (Guam); _idem_, Contr.
U. S. Nat. Herb., 9, 1905, p. 79 (Guam); Mearns, Proc. U. S. Nat.
Mus., 36, 1909, p. 476 (Guam); Reichenow, Die Vögel, 2, 1914, p.
116 (Marianen = Guam); Takatsukasa and Kuroda, Tori, 1, 1915, p.
63 (Mariannes = Guam); Cox, Islands of Guam, 1917, p. 21 (Guam);
Thompson, Guam and its people, 1942, p. 23 (Guam).
_Halcyon rufigularis_ Sharpe, Cat. Birds British Mus., 17, 1892,
p. 260 (No type locality = Guam).
_Halcyon cinnamanea_ Wheeler, Report Island of Guam, 1900, p. 12
(Guam).
_Halcyon cinnamonius_ Prowazek, Die deutschen Marianen, 1913, p.
102 (Marianen = Guam).
_Souropatis cinnamominus_ Kuroda, in Momiyama, Birds Micronesia,
1922, p. 59 (Guam).
_Hyposyma cinnamomina_ Mathews, Syst. Avium Australasianarum, 1,
1927, p. 384 (Marianne = Guam).
_Halcyon cinnamomina cinnamomina_ Hand-list Japanese Birds, rev.,
1932, p. 179 (Guam); Hand-list Japanese Birds, 3d ed., 1942, p.
200 (Guam); Mayr, Birds Southwest Pacific, 1945, p. 293 (Guam);
Peters, Check-list Birds World, 5, 1945, p. 206 (Guam); Watson,
The Raven, 17, 1946, p. 41 (Guam); Baker, Smithson. Misc. Coll.,
vol. 107, no. 15, 1948, p. 63 (Guam).
_Halcyon cinnamomius_ Bryan, Guam, Rec., vol. 13, no. 2, 1936, p.
25 (Guam).
_Geographic range._--Micronesia: Mariana Islands--Guam.
_Characters._--Adult male: Head, neck, upper back, and entire under
surface near "Sanford's brown"; auriculars black with bluish wash;
narrow black line extending around nape; orbital ring black; lower
back, lesser wing-coverts, and scapulars deep greenish-blue; outer
webs of wing feathers and tail blue; rump resembles tail but
slightly lighter; under wing-coverts greenish-blue; feet dark
brown; bill black, base of mandible paler; iris dark brown.
Adult female: Resembles adult male, but chin, throat, and upper
breast paler; rest of underparts and under wing-coverts white; a
few cinnamon-tipped feathers on tibia and at bend of wing; back
and scapulars darker olive-green and less blue.
Immature: Resembles adult, but brown of crown mixed with
greenish-blue; back and wing-coverts edged with pale cinnamon;
chin and throat whitish; rest of underparts buffy-white in male
and paler in female; feathers on breast and nape with dark
edgings.
_Measurements._--Measurements are listed in table 32.