Harvest is associated with death because of the end of growing season. Kronos eating his children was used in a poetic sense for time devouring all things, as in the old saying "nothing lasts forever." and the Grim Reaper carrying a scythe are directly derived from Cronus (Cronus (or Kronos) was the father of Zeus and his siblings.). The Romans identified Cronus with their god Saturn. Saturn, the Sower, was also a god of agriculture. The Roman god's festival, called the Saturnalia, was held from the 17th to the 19th of December and was quite popular.
Cronus and Saturn were also identified with time. Harvest and time might be related in the first place, but some suspect this relationship may have happened because of a confusion between the words Cronus and Chronus.Both of these more modern figures are sometimes accompanied by a crow. Images of the Grim Reaper in engravings in the Middle Ages that show a skeletal figure holding a scythe and hourglass with a crow nearby show this connection.