I was wondering if this is good time of the year to place some protein patties to them bees.
I am a big advocate for pollen sub and use Pro-Bee. A week ago bees were bringing pollen in but the last 5 days its been very cold and the East winds of death have arrived 3 weeks early this year. It very much depends where you live and local weather patterns. Hazel has finished here, snowdrop, crocus and blackthorn are all in full flower now but its freezing cold so the bees are never going to gather any. By the time it warms up they will be finished. So the only way for me to have strong colonies in time for any nectar flow is to feed a sub. If you get a warm day quickly pop a frame or 2 out with some brood on and check how much pollen is stored near them. Its not unusall for mine to have none at the end of March.