This is re: to the good seed?

Their is a contraption actually that seperates the hulls from the seed but its more for larger quantities. Its called a winnower. If you google seed winnower you will find plans to make one.

However for smaller quantites you take the seed outside and pour it from a height of around two feet into another dish ( larger dish ) The wind will blow away the husks and leave you with the good seed. Put that back in the dish and back into the cage.

Bear in mind also, if you buy a cheaper brand of seed, like a plain brand seed, there is seeds in the mix that the birds wont eat. These are called filler seeds....often things like wheat and other seeds not right for your bird. If you find your mix has seeds it wont eat, then all you would be replacing back into the food dish is something they wont touch. Birds have been known to starve when an owner kept putting back leftover seed and not realising this could be a problem.

Also cages with grids at the bottom lose a lot of good seed as the birds spill it through the bars.

You can always throw out leftover seed into a plantpot with good quality soil and grow whats left. Once the seed heads have grown and are still green feed these to your bird for great nutrition.

Here is your answer. Go to a pet store and buy a pair of side cage feeders (one for water na done for seeds.) It is a container which holds the seeds, and they fall into a tiny trough for the bird to eat. As he eats the seeds, more drop down in to the trough. ( same with the water.) the hulls will fall to the floor cage where you can simply use a portable hand vac to suck them up like once every day or two. They are plastic and attach to the side of the cage through the bars so you just pull them out to fill them when needed. They are much better than blowing, or skimming the chaff off each day, and the birds food and water always remain clean. Also if you go away, these feeders will supply up to a weeks worth of food and water for one bird.! good luck!

i just empty the food dish onto a flat plate and gentaly blow since the hulls are lighter they blow away easy and the seeds still stay in the plate you wont get all of them but you will get alot out so you can get an idea of how many seeds are left i doubt thier is a contraption that strains the empty seed shells