Birds live in trees, so you may wonder how plants can harm your cockatiel, but the fact remains that some plants are toxic to your pet, even if your bird doesn’t know it and may try to nibble it. The following listing shows plants to keep away from your cockatiel and vice versa.

Avocado Lobelia
Black locust Lupine
Clematis Oleander
Crown vetch Philodendron
Dieffenbachia Poinsettia
Eggplant Rhododendron
Foxglove Rhubarb leaves
Hemlock Virginia creeper
Lily of the valley Yew