Soft molt is when a canary constantly sheds feathers all year round. Canaries need a stable environment. The soft molt signifies that the Canary's metabolism is stressed. Molting is a primary factor in a bird's life. Nature has timed the molting cycle to occur under the most ideal conditions.
Nature provides warmth, rain, humidity, lengthening photoperiods, and a luxurious food supply.
The bird must provide a good healthy body, have its reserves prepared, and its hormone system tuned to undertake a molt. The countdown starts when spring arrives. Molting in many birds starts after the reproductive cycle. However, the feathering is definitely thin, and this may cause the bird to chill. To avoid this, the room temperature should not be allowed to drop.