Anna,
I like Herman Brother's seed too but the shipping charges kill me.
http://www.hermanbros-seed.com/index.html
I have a good relationship with my local feed store and she will order me seed any time. This way I just pick it up and save a ton on shipping. (though I buy Abba specialty seeds at 200 to 400 lbs at a time and save with freight shipping)
I just got through mixing a batch. The last two 50 lb sacks of the white porso millet cost $18 a bag + tax. Usually it is a little higher at $22 for 50 lbs. The german brown millet and the siberian red millet is closer to $30 to $34 for 50 lbs. The oat groats (your parrot finches will love these run about $25 for 50 lbs. I can mix 200 lbs of millets for around $ .50 per pound. This is a great savings and no shipping charges

No effort either if Hubby will pick them up and carry them to your bird room

Maybe check with your local feed suppliers and see if they will include your special order with their next shipment.
Mixing:

White millet

siberian, german, porso millet already mixed by me

Oat Groats

Sunflower chips
I also get canary grass. All of these are sproutable and some I even plant for greens. Many of my birds love to nibble on potted young grass.

Some dealers carry not so clean seed so you may have to try a few different suppliers to find the really nice cleaned and polished seed. Hope you can find an agreeable local vendor
