If they're little black bugs with long noses, they're weevils & if they're little larvae worms or flying moths, you've got meal moths or flour moths.....
You say you picked up some seed at the bird store.....if this was from self-dipping bins, you should think about upgrading to foods in sealed packages, because hermetically sealed packages normally don't come with the added protein, though both my nanday and Patagonian both go after the flying moths, and all my birds enjoy the larval stage of the moths if I slip up & don't watch their food.....
The moth worm can crawl up the screw threads of plastic or glass jars with loose fitting lids...they can also eat into or out of "sealed" plastic bag packages. If you purchase a fresh bag of bird food & find it infested when you bring it home, check the bag very carefully & you will probably find a small cut and/or hole in the bag & if you don't want to return the feed to the store, be sure you dispose of it in an outdoor trash container.
I think if you search the forum for flour moth or meal moth, you might find some more information on these moth critters, can't be sure on the weevils though.....
