Described By: Pliny- "Halcyons are especially remarkable for this- the seas and those who sail them know the days when they breed. The bird itself is a little larger than a sparrow, sea-blue in color and reddish on the underside, with white feathers in the neck, and a long slender beak... They breed at midwinter, on what are called "Halcyon days", during which the sea is calm and navigable, especially near Sicily. They make their nests a week before the shortest day, and lay a week after it."
The entire beautiful legend here:
http://www.islandnet.com/~see/weather/almanac/arc2002/alm02dec2.htmWhat's calm winds in the Mediteranean, it's "expand as little energy as possible" in the North (since these are the shortest days)
So, we decide to make these dreaming days. wish-making days.
A nice way to celebrate - on December 14 we put up a little tree (artificial) to which we attach ribbons in symbolic colirs for our wishes...
I also used the Halcyon days as measure (no less than) of the time to have my tree on.