
My favorite bee pollen source is Peggy's Pollen, a natural US product, e-mail Diane at dianer57@gmail.com or call 320-2434330. If you call, please remember to ask for Diane as Peggy is Diane's Daughter.
National Public Radio (NPR) reported recently that 90% of all bee pollen sold in the US is from China. After the publicity of tainted products from China, I read labels and am selective in my purchases.

Beautiful Multicolored Peggy's Pollen Granules demonstrates that the bees collected it from a variety of plants and suggest better nutritional value!
To preserve it nutritional value, I store some in the refrigerator for daily use and the rest is stored in the freezer.
When Do You Feed Bee Pollen?I use bee pollen for specific purposes throughout the year. It is very nutritious being 25% protein by weight and contains all 22 essential amino acids plus numerous vitamins, major minerals, micro-nutrients, enzymes and co-enzymes, fatty acids, pigments-xanthophyll and carotene, and some carbohydrates calories but not so many to be fattening.
All year round, it is good to offer bee pollen free choice to any thin bird or one that just is not up to par or ones that are out of condition. Many times I have seen these canaries enthusiastically eat bee pollen even when seed and other foods were difficult for them to eat. On most occasions their health or condition returned and they again ate a normal diet like the rest of the flock.
During molting, it is good nutrition for molting birds to meet their nutritional challenges but also it is good because of its yellow pigments that help to color yellow feathers. Borders are given bee pollen free choice during the molt. But because of the yellow pigments bee pollen contains, I do not feed it to red ground potential show birds.
It is a very good conditioner for breeding and consistently helps improve fertility rates. It is wonderful for weaning birds as they quickly begin eating pollen even before they learn to eat egg food!
Bee pollen is a strong song stimulator. With the German rollers, we compete in the equivalent of an adolescent boys song and not a breeding type song. A little bee pollen mixed in with rape, sunflower pieces, and thistle seed but no more than once a week in small amounts is OK even for rollers until they are put in the show cages. Care must be exercised to not over feed them bee pollen as you want to keep them quiet until their bodies are fully developed to not ruin their ability to sing later.
Song birds where loudness, frequency and freedom are very important can be feed more bee pollen along with toasted wheat germ to improve these traits. Individuals who just want to enjoy a singing bird will be pleased with the results of feeding bee pollen with wheat germ.
So the answer to the question, "When do you feed bee pollen" is year round but selectively for the my intended purposes.
Note: When you start feeding bee pollen to molting loose feathered birds, their feathers will immediately tighten up. The improvement is obvious even as soon as within 24 hours! It is very important to feed bee pollen to borders!