If you taste the nuts and they taste okay to you, they're probably okay to put out as food for wildlife...but they'll probably attract more squirrels than birds. Frankly, I'd be inclined to taste the nuts and use them for human consumption if they're still good...
"We are--each of us--dying; it's how we live in the meantime that makes the difference."
"It's not what you gather, but what you scatter that tells what kind of life you have lived!"
"Be kinder than necessary, for everyone you meet is fighting some kind of battle."