According to different reports on the Internet, Premium Nutritional Products, manufacturer of the bird and rodent food brand “ZuPreem”, has voluntarily recalled two lots of bird food because they may contain higher than recommended levels of calcium. The recall refers only to “ZuPreem Medium/Large” and “ZuPreem Large FruitBlend” with natural fruit flavours, which are maintenance formula bird foods. The company has initiated the recall because elevated levels of calcium can make birds sick and may in some cases be fatal. Symptoms include decreased activity levels or appetite, an increase in water consumption or watery droppings