All year round feeding is recommended.
Athough winter feeding can be most beneficial due to natural food sources being in short supply, shortages can occur at any time of the year and therefore its safe and reccomended to feed all year round.
By offering the birds a regular uninterrupted supply of food to suppliment their natural diet, you will ensure at times of high demand – breeding, extreme weather or rearing of their young that they have a better chance of survival.
Regular feeding all year round is also beneficial as birds return time after time to take advatage of the ready food supply. Stopping this supply will result in birds having to search for a new supply wasting time and energy that they desperately need for other activities.
As a bird watcher it is also beneficial to keep your garden visitors coming back regularly to feast in your garden.