This bird was shot in the neighbourhood of Alph, a town situated in the middle of a swamp, described at page 233 of these travels. They were seen in some abundance in that neighbourhood, and were noticed by Major Denham as remarkable for their beauty and gracefulness.

Species 15.—Ardea melanocephala.

Ard. cinerea; capite cristato, colli parte posteriore lateribusque, regione interhumerali, remigibus, rectricibusque nigris, gulâ collique parte anteriore albis.

Colli inferioris plumæ elongatæ cinerascentes. Dorsi pars anterior inter humeros nigra, posterior saturatè cinerea. Ptila pallidè cinerea. Tectrices inferiores albæ. Rostrum nigrum, mandibulâ inferiore flavescente, apicem versus nigro marginatâ. Pedes nigri. Longitudo corporis, 2 ped. 9 unc.; alæ, 15 unc.; rostri, 4; tarsi, 6.

We feel much hesitation in characterizing the bird before us as a distinct species. In a family like the present, where there is so much variation both in age and sex in the same species, it is almost impossible to decide upon the identity or distinction of species, unless by actual observation of the birds themselves in their native haunts, and in their different ages and states of plumage. On the whole, however, it is perhaps the most eligible plan to keep those species separate which show evident marks of distinction; leaving it to more accurate observation to ascertain whether they may be identical with described species, and differing merely by age, sex, or the variations of plumage according to the different seasons of the year.

The bird before us might, at first sight, be supposed to be the common Ardea cinerea, Linn. But that bird, as far as we have observed, never possesses the entirely black head which distinguishes the specimen before us; nor has it the black on the hind part of the neck, nor on the back between the shoulders. The younger bird of our common species has those parts cinereous which are black in the adult: and the crest and lower feathers of the neck are never so much elongated as in the old bird. The strength of the black markings in Major Denham’s species, moreover, and the developement of the crest, neck, and scapular feathers, prevent us from concluding it to be an immature bird. If we allow it to be adult, it is decidedly distinct from the adult of A. cinerea. We know no other allied species to which we might consider it referable.

These birds were found in great abundance in all the lakes and marshes throughout the route of our travellers. They were met with in company with numberless other species of the family, specimens of which our officers were prevented from preserving, or bringing home, in consequence of the difficulties attending the expedition, to which we have before alluded.

Genus.Scopus. Briss.

Species 16.—Scopus umbretta.