41 



852 



Birds of Celebes: Ardeidae. 



Butorides javanica (1) Walden, Tr. Z. S. 1872, VTH, 100; (2) Meyer, Ibis 1879, 143; 

 (3) Guillem., P. Z. 8^4 885, 561; (4) W. Bias., Z. gas. Om. 1886, 167; (5) Buttik., 

 "Weber's Eeise 1893, HI, 284; (6) M. & Wg., Abh. Mus. Dresd. 1895, Nr. 8, p. 13; 

 (7) Hartert, Nov. Zool. 1896, 181; (8) Sharps, Oat. B. 1898, XXVI, 177. 



c. Ardea stagnatilis (1) Hosenb., Zool. Garten 1881, 167. 



"Sweko itam" (Black Heron), Malay (Meyer 2); " Rarappera", Minahassa (id.). 



"Swekko kaki biru", "Swekko abu abu sedang", "Swekko burik ketjil", Minahassa (N. C). 



The following reference apparently proves the occuiTence of the migratory E. 

 Asiatic B. javanica amurensis in Celebes: 



d. Butorides macrorhyncha (1) W. Bias., Z. ges. Orn. 1886, 169. 



For further synonymy of B. javanica and its races cf. Salvador!, Orn. Pap. 1882, lU, 359, 

 Agg. 1891, 206; Sharpe, Cat. B. 1898, XXVI, 177. 



Adult in breeding plumage. Head above, crest, and a patch on the ear-coverts slaty 

 black, glossed with green; remaining parts grey — dark grey on face and neck, 

 more slate-grey, partly with strong green reflections, on the lanceolate feathers of 

 mantle and scapulars; rump greenish grey, wings and tail-feathers slaty, glossed with 

 green, the wing-coverts and inner remiges edged with buff or white; under parts lighter 

 grey, white along mesial hne of throat and metacarpal edge, stained with buff on 

 jugulum (Minahassa, Faber — • C 3546). "Iris light yellow; bill above black; bill 

 below, and feet, light green"' (Platen, Sarawak: in W. Bias., J. f. O. 1882, 254). 



Apparently the lengthened lanceolate plumes of the back and scapulars are a 

 sign of mature age — not simply of nuptial dress, to be lost as soon as the breeding 

 season is over. 



Sex, The sexes are not known to differ in plumage. 



Immature. Like the adult, but the wing-coverts more broadly margined with buff and cinnamon, 

 the primary coverts and quills conspicuously tipped with white, the lanceolate plumes 

 of the back shorter; neck, face and under-parts grey-brown (near Manado — C 10952). 



Young. Without the lanceolate dorsal feathers; head above not black, but blackish, streaked 

 with cinnamon; upper parts bistre-brown, the wing-coverts broadly edged with cinnamon 

 and tipped like the remiges with white or whitish; under parts buff, wliite on throat, 

 broadly streaked with dusky and brown (Tondano — C 10985). 



