[20] From the Latin _torqueo_, 'to twist.'
[21] Greek [Greek: iynx] from [Greek: iýzô], to 'shriek.'
Back azure-blue; head and wing-coverts bluish green, spotted with azure-blue; under and behind the eye a reddish band passing into white, and beneath this a band of azure-green; wings and tail greenish blue; throat white; under plumage rusty orange-red. Length seven inches and a quarter; width ten inches. Eggs glossy white, nearly round.
Halcyon days, every one knows, are days of peace and tranquillity, when all goes smoothly, and nothing occurs to ruffle the equanimity of the most irascible member of a household; but it may not be known to all my younger readers that a bird is said to be in any way concerned in bringing about this happy state of things. According to the ancient naturalists the Halcyon, our Kingfisher, being especially fond of the water and its products, chooses to have even a floating nest. Now the surface of the sea is an unfit place whereon to construct a vessel of any kind, so the Halcyon, as any other skilful artisan would, puts together on land first the framework, and then the supplementary portion of its nest, the materials being shelly matter and spines, whence derived is unknown; but the principal substance employed is fish-bones. During the progress of the work the careful bird several times tests its buoyancy by actual experiment, and when satisfied that all is safe, launches its future nursery on the ocean. However turbulent might have been the condition of the water previously to this event, thenceforth a calm ensued, which lasted during the period of incubation; and these were 'Halcyon days' (_Halcyonides dies_), which set in seven days before the winter solstice, and lasted as many days after. What became of the young after the lapse of this period is not stated, but the deserted nest itself, called halcyoneum, identical, perhaps, with what we consider the shell of the echinus, or sea-urchin, was deemed a valuable medicine.[22]
The real nest of the Kingfisher is a collection of small fish-bones, which have evidently been disgorged by the old birds. A portion of one which I have in my possession, and which was taken about twenty years since from a deep hole in an embankment at Deepdale, Norfolk, consists exclusively of small fish-bones and scraps of the shells of shrimps. A precisely similar one is preserved in the British Museum, which is well worthy the inspection of the curious. It was found by Mr. Gould in a hole three feet deep on the banks of the Thames; it was half an inch thick and about the size of a tea saucer, and weighed 700 grains. Mr. Gould was enabled to prove that this mass was deposited, as well as eight eggs laid, in the short space of twenty-one days. In neither case was there any attempt made by the bird to employ the bones as materials for a structure; they were simply spread on the soil in such a way as to protect the eggs from damp, possessing probably no properties which made them superior to bents or dry leaves, but serving the purpose as well as anything else, and being more readily available, by a bird that does not peck on the ground, than materials of any other kind.