no. only spinach.
Cockatiels can eat crackers, except they make them put on weight. They have no nutritional content in crackers for cockatiels. Despite the movies where birds eat crackers, cockatiels eat vegetables and seeds (as a treat). Your cockatiel should eat everything in moderation. As for crackers, as an occasional treat - cockatiels love them!
Yes as long as it doesn't have a lot of butter or anything
Well you open the bag of sunflower seeds and feed them to the cockatiels. They will then eat them.
yes sunflower seeds are part of cockatiels seed mix
They can't eat salmon.
Yes.
Cockatiels can eat millet and they love it! It is a treat, though, and should be given to them occasionally to avoid overweight cockatiels.
Before they have been weaned, cockatiels can eat wheat-bix and other soft foods. After they are weaned, cockatiels can eat anything that adult cockatiels eat. Cockatiels love lettuce! (Not too much - it acts as a laxative in large amounts). Your cockatiel will also enjoy carrot and brocolli. DO NOT FEED YOUR COCKATIEL AVOCADO OR TOMATO!
No because Eucalyptus leaves are poisonous to every other living animal except for the Koala. I'm not sure if it is safe or not, but there is an overhanging eucalyptus tree that my orphaned lambs like to chew on sometimes. So, while it's meant to be poisonous, I don't think it's bad for them if they eat it sometimes.
Rhubarb actually comes in several color varieties; from green to speckled pink to ruby red. It is safe to eat the stalks of green rhubarb, but never eat them if they have been frostbitten, and never ever eat the leaves of the rhubarb plant, as they are poisonous.
No. The beardie may eat them.
Cockatiels can eat honey. They love honey. It may surprise you, but honey is used in many cockatiel treats (to hold seeds together). So, yes, cockatiels are allowed to eat honey - in moderation, though!