Of the genus Psittacus were procured four species, three of which have been described, and perhaps the fourth also; but, as the specimen is bad, it is not easy to ascertain positively whether it has or not. One, the Psittacus Albifrons (Ind. Orn., vol. i., p. 119), white-crowned parrot (Shaw vol. viii., p. 519), is very numerous throughout Yucatan. It is a beautiful bird, coloured with green, blue, red, white, and yellow. Another, supposed to be the Psittacus Guianensis (Gen. Lil., vol. i., p. 323), the green parrot of Guiana (Gen. Syn., i., 231), is not so abundant as the last, but still quite numerous. The specimens were procured at Ticul, and some were afterward shot near Iturbide. The third species was not seen in the wild state, the only specimen procured being given to Dr. Cabot, alive, by the padre Curillo, of Ticul. It is the Psittacus Macao (Ind. Orn., vol. i., p. 82), red and blue macaw (Gen. Syn., i., 199).
Of the genus Ramphastos one specimen was procured, the yellow-breasted toucan (Gen. Syn., vol. i., p. 326), Ramphastos Tucanus (Ind. Orn., vol. i., p. 136). This specimen does not agree with the description in Latham, but is the same as the one described by Mr. Edwards from a living specimen in Lord Spencer's collection. It was procured at Uxmal on the day when Dr. Cabot went down to the hacienda to operate on an Indian's leg. Two or three different species were afterward seen at Macobà, but Dr. C. did not succeed in killing any of them.
Of the genus Momotus were obtained two species: the first, the common Brazilian or blue-headed motmot; this was quite common in Yucatan, but not so common as the other, as to which it is doubtful whether it has been described. It is about the same length as the blue-headed, but the tail is longer in proportion to the body. The markings on the plumage are very different from those of the Brazilian; there is a black stripe extending down from the chin to the middle of the breast, bordered on each side with light blue; a broad, light blue, almost white, stripe extends over the eye from the base of the bill almost to the hind head. The general colour is a sort of greenish bay; primaries and tail light green, tipped with black; the two central feathers of the tail much longer than in the Brazilian, having the shaft bare to a much greater degree, and the feather at the tip is bright pale green, tipped broadly with black.
Of the genus Crotophaga one species was procured, the lesser ani (Crotophagi Ani. Ind. Orn., vol. i., p. 448). These were very abundant in all parts of the country.
Of the genus Oriolus, including under this denomination Icterus and Cassicus, were procured five species, one of which is supposed to be new, three doubtful, and one known. The male of the new species is nine inches and a half long; head, neck, cheeks, breast, belly, rump, tertiaries, and nearly the whole length of the outer tail feathers and the lower part of the third, and occasionally a stripe on the fourth, bright chrome yellow; face, throat, primaries, secondaries, back, and four, and sometimes six tail feathers, black; legs bluish; bill black, except the base of lower mandible, which is bluish; sings finely. Female eight inches and seventh eighths long; marked like the male, but not so brilliant; irides hazel. One of the doubtful comes very near to Latham's description of the lesser Bonana bird (Oriolus Xanthornus. Ind. Orn., vol. i., p. 181), but is an Icterus, and differs in some particulars of plumage. Another of the doubtful resembles closely the black oriole, and another the black cassican, but is smaller. The known species is the St. Domingo oriole (Oriolus Dominicensis. Ind. Orn., vol. i., p. 182). Two specimens of this bird were procured, being the only two that were seen.
Of the genus Cuculus, including Polophilus, were procured two species. One resembles somewhat the bird described by Latham as the variegated coucal (Polophilus Variegatus); the other the Cayenne cuckoo (Cuculus Cayanus. Ind. Orn., vol. i., p. 221). These were both quite abundant throughout the country.
Of the genus Picus were procured three species, two of which are perhaps new. One of these resembles the little woodpecker of Europe (Picus Minor) very closely. The other resembles Latham's description of the Brazilian woodpecker (Picus Braziliensis). The known one is the lineated woodpecker (Picus Lineatus. Ind. Orn., vol. i., p. 226).
Of the genus Certhia were obtained two species, of one of which no description has been found, though Dr. Cabot was under the impression that he had seen specimens of it in some of the cabinets of Europe. It is three inches and seven eighths long; top of head, neck, and back, dark brown, each feather having a light, buff-coloured, pear-shaped mark in the centre; chin light buff colour; breast and belly light brown, each feather having also a light buff-coloured mark down the centre; primaries, secondaries, tertiaries, and tail dun-coloured; bill one inch and three eighths along the ridge, and one inch and five eighths along the gap, bent in its whole length, and horn-coloured. They were not numerous. The other species is the yellow-bellied nectarinia (Nectarinia Flaveola. Vieill., Ois. Dor. Certh., plate 51, p. 102). They were quite numerous at Cozumel, where two specimens were procured. They were not seen in any other part of the country.
Of the genus Trochilus were procured two or three species, one of which is undescribed; another is probably the young of the same, and one is described. The undescribed, male, is four inches long; bill six eighths of an inch, yellowish, tipped with black; upper parts of head and back dull green; throat and upper part of breast bright emerald green in scales, with metallic lustre; lower part of breast, belly, and tail dun or bay colour; the feathers of the tail fringed and tipped with black; primaries dark brown, with some purplish reflections. The four middle tail feathers have greenish reflections on them. The female is rather less, and wants the bright emerald throat, the whole under parts being bay-coloured; the male had some white about the thighs. The known species is the Ourissia humming-bird (Trochilus Maugeri. Lesson.).
Of the genus Turdus were procured two species, thought to be new. One agrees very nearly with Le Merle de Paraguai, or Calandra, as described in Vieillot, but it wants the white on the wings. The other is a good deal like the Turdus Plumbeus, as described by the same author. The first is quite common throughout Yucatan, but the second is rather rare.