AND IN THIS REGARD eſpecially, namely for breeding after the ſummer Sunſteed, the Halcyones are of great name and much marked. The very ſeas, and they that ſaile thereupon, know well when they ſit and breed. This very bird ſo notable, is little bigger than a ſparrow: for the more part of her pennage, blew, intermingled yet among with white and purple feathers, having a thin ſmall neck and long withall.
Source: wiktionary