Scenting

The dogs (the guardians of the sheep and goats) accompanied Chloe, and scenting about in their usual manner they discovered Dorcon who was in the act of rising up to seize their mistress. Taking him for a wolf they set up a full cry, rushed upon him and began to bite before he could recover from his astonishment.

Source: tatoeba (6212486)

The first scenting period is the most important, so large quantities of flowers are used, but the amount is reduced during subsequent scentings.

Source: wiktionary