ARDEIDiE — THE HERONS — NYCTICORAX. 
55 
In “Hand-list of Birds,” YoI. III. p. 33, Dr. G. R. Gray enumerates three Old World species 
besides N. “ nycticorax” ( griseus ). These are, “ caledonica, Gm.,” New Caledonia ; “ ? manillensis, 
Vig.,” Philippines and Solomon Islands, and “ crassirostris, Vig.,” Island of Bonin. These per- 
haps represent races of one species, although we have seen only the first named. N. caledonicus 
N. griseus ncevivs. 
is strictly congeneric with N. griseus, with which it agrees very closely in the details of form, in 
size, in general system of coloration, and in the character of the occipital plumes. As to colora- 
tion, the pattern is the same, except that the greenish black of the back and scapulars is wanting, 
while that of the pileum extends quite to the bill, there being, therefore, no white frontlet. The 
cinereous of N. griseus, however, is entirely replaced by a fine cinnamon-rufous, which gives the two 
birds quite a different aspect. In the young plumage they are more similar, though still readily 
distinguishable. 
Nycticorax griseus naevius.' 
THE AMERICAN BLACK-CROWNED NIGHT HERON. 
Botaurus ncevius, Beiss. Orn. V. 1760, 462. 
Ardca ncevia, Bodd. Tabl. P. E. 1783, 51 bis (ex PI. Enl. 939.) 
Nyctiardea grisea, var. ncevia, Allen, Bull. Mus. Comp. Zool. III. 1872, 182. — Cotjes, Ivey, 1872, 
269; Check List, 1873, no. 458; B. N. W. 1874, 523. 
Nyctiardea grisea ncevia, IIidgw. Nom. N. Am. B. 1881, no. 495. — Coues, Check List, 2d ed. 
1882, no. 664. 
Ardca hoactli, Gmel. S. N. I. 1788, 630. 
Ardca cana, Gmel. t. c. 643. 
Ardca Gardeni, Gmel. t. c. 645, no. 81 (based on the Gardenian Heron of Penn, and Lath.). 
Nyctiardea Gardeni, Baird, Birds N. Am. 1858, 678 ; Cat. N. Am. B. 1859, no. 495. 
^ Ardea discolor, Nutt. Mabb Orn. II. 1834, 54. 
Nycticorax americanus, BoNAr. Comp. List, 1838, 48. 
Nycticorax vulgaris, D'Orb. Ois. Cuba, 1839, 208. 
Nycticorax griseus (part), Reichenow, J. f. 0. 1877, 237. 
