Most people choose plastic bowls as these models come in most colours, forms and designs. Therefore, people prefer them as they are very likable to watch, and that will attract their birds, making them eat their food. Many do not consider that the material in the bowl in which it is made is so important, but it is. Plastic is a porous material; therefore, the risk that dust, saliva, or food debris can get stuck into it will increase the risk of your bird getting sick.