Here are wont to haunt many varieties of the richly-hued trogons, unknown to the lower regions; and at any hour their plaintive note may be heard at intervals, as they sit moodily, singly or in pairs, on the branches, with the long tail outspread and drooping, watching for passing insects. Cuckoos of several kinds, their plumage glancing red in the subdued light, flit noiselessly through the woods, searching for caterpillars. Purple jays, in large flocks, alight on some berry-bearing tree, chattering and gesticulating, but shy and alert,--ready to start at the snapping of a twig. Motmots and chatterers in gayest hues,--scarlet, violet and blue,--are abundant. Goatsuckers, in exquisitely-blended and pencilled tones of colour, start from some shady glen where they are dozing away the day hours, and, flying a short distance on soft winnowing pinions, rest again, and seem to fall asleep in an instant. Showy manikins and tanagers of the brightest tints are flaunting in every bush: pigeons and doves of soberer hues are cooing their gentle complainings in the taller trees; and guans and curassows are marching with stately pace in the paths, picking here and there some delicate morsel; or running with loud harsh cry, with outstretched neck and rapid stride, as they detect approaching danger.[208] Still, conspicuous above all are the Humming-birds, which, revelling in this region of the sun, are buzzing around the blossoming shrubs like insects. And pre-eminent among these is the Fiery Topaz, a name that attempts to express what neither title, nor description, nor coloured figure can adequately express,--its gemmeous magnificence and lustre. One of the first ornithologists of the age, the Prince of Canino, has assigned to the species the honour of being "_inter Trochilides pulcherrimus_." Description, however, I must give, for want of anything better, since, even if I possessed a living specimen, I could not exhibit its living radiance to all my readers: therefore, pray pay attention to the details, and imagine. The general hue of this imperial atom is a blazing scarlet, in fine contrast with which the head and lower part of the throat are deep velvet-black. The gorget of the throat is emerald green, with a cloud of delicate crimson in the centre. The lower part of the back, the rump and the upper tail-coverts are of that beautiful bronzed green which changes to orange gold, so frequently seen in this tribe; while the wing-quills and tail are purplish black, except the middle pair of feathers in the latter, which are very slender, project to a great length, and cross each other; these are green with a purple gloss.