What lorikeets can not eat?

Lorikeets cannot be given meat, whether fresh or tinned, or meat, chicken or fish. They can eat everything else. There are no fruits, berries or vegetables that are poisonous to them, except for onions and some varieties of avocado, which are toxic to birds and animals.

Naturally, there will be some plants (such as oleanders) that they will instinctively shy away from.