Amongst the smaller birds were trogons, mot-mots, toucans, and woodpeckers. The trogons are general feeders. I have taken from their crops the remains of fruits, grasshoppers, beetles, termites, and even small crabs and land shells. Three species are not uncommon in the forest around Santo Domingo. In all of them the females are dull brown or slaty black on the back and neck, these parts being beautiful bronze green in the males. The largest species (Trogon massena, Gould) is one foot in length, dark bronze green above, with the smaller wing feathers speckled white and black, and the belly of a beautiful carmine. Sometimes it sits on a branch above where the army ants are foraging below; and when a grasshopper or other large insect flies up and alights on a leaf, it darts after it, picks it up, and returns to its perch. I found them breaking into the nests of the termites with their strong bills, and eating the large soft-bodied workers; and it was from the crop of this species that I took the remains of a small crab and a land shell (Helicina). Of the two smaller species, one (Trogon atricollis, Vieill.) is bronze green above, with speckled black and white wings, belly yellow, and under feathers of the tail white, barred with black. The other (Trogon caligatus, Gould) is rather smaller, of similar colours, excepting the head, which is black, and a dark blue collar round the neck. Both species take short, quick, jerky flights, and are often met with along with flocks of other birds--fly-catchers, tanagers, creepers, woodpeckers, etc., that hunt together, traversing the forests in flocks of hundreds together, belonging to more than a score different species; so that whilst they are passing over, the trees seem alive with them. Mr. Bates has mentioned similar gregarious flocks met with by him in Brazil; and I never went any distance into the woods around Santo Domingo without seeing them. The reason of their association together may be partly for protection, as no rapacious bird or mammal could approach the flock without being discovered by one or other of them, but the principal reason appears to be that they play into each other's hands in their search for food. The creepers and woodpeckers and others drive the insects out of their hiding-places under bark, amongst moss, and in withered leaves. The fly-catchers and trogons sit on branches and fly after the larger insects, the fly-catchers taking them on the wing, the trogons from off the leaves on which they have settled. In the breeding season, the trogons are continually calling out to each other, and are thus easily discovered. They are called "viduas," that is, "widows," by the Spaniards.