I know parrots can't digest lactose, but it's not poisonous for them either. I don't feed it regularly. But I've fostered many birds before that were sick (except for Sour Crop), and I found Colostrum increased their body mass, feather quality and got rid of whatever it was that they were sick from. I just gave 1/4 of a capsule for smaller birds like Lovebirds, outside small birds, pigeons. Also, although for Dogs and Cats, have worked extremely well for me for Parvo, Kennel Cough and Feline HIV to name a few.
There's actually some studies on it, except for Chickens.
There's actually some studies on it, except for Chickens.
