It may depend on the bird, but in general, fruit and vegetables are good, and things like bread, dairy products and meat should never be given. Avocados are poisonous to many birds, as are chocolate and alcohol, so avoid those at all costs.
If it is very young, you might want to consider mashing up the vegetables to make it easier for it to eat.
From pet birds I've had in the past, I've found carrots, apples and raspberries to be favorites.
you should feed a baby bird whole grain bread if you have to, but the best food to give a baby bird is dog or cat food soaked in water.
Baby birds will eat whatever they are fed but bread is an exteremely poor food as it is nutritionally defficient in lots of things.
none you should not keep birds in your house. later in life the bird will not learn how to live on its own and it will die.
plain cereal
Birds eat cereal, but only in pieces, like only a few honey nut cheerioes, or just a few lucky charms. Not a whole lot.
no they eat puppy food
all except for penguins
Some baby birds (robins) eat worms, but to some birds, worms are VERY toxic!
They can eat bran and cornflakes.
Yep, I usually throw out some 'sweet' uncooked rice (Rice made to make mochi -- Japanese rice cakes) to feed some local birds during the winter time. once in a while I'll see a squirrel enjoying them as well
Eat every kind of cereal.
Quack flakes
as an omnivore, they will eat anything they can get to when hungry. If baby birds are where the skunk can get them, yes.
they eat birds ,small baby birds,eggs, rodent,rabbit,and a hare
Cannibal birds.