Hey, A friend of mine has recently begun caring for some cage birds owned by her sister. There are parakeets, doves, pigeons, and I think a cockatiel or two. It seems they've been getting seed of some sort, and have never had any grit. Is this possible? I gave my friend some of my chicken grit, which she can break up for the smaller birds if needed. She did, and says it doesn't seem that they are ingesting any grit...should she worry? The birds came from some woman who apparently has tons of birds, overcrowded and not very well cared for (this is the opinion of my friend who knows nothing about birds, but she's not blind, either!) I assumed all birds need grit unless they eat only soft food... but these birds have all survived this long, so does she need to keep putting grit in the cages for them?? Thanks for any information.