The budgerigars are about on her level.

那些小鹦鹉同她倒差不多.

In the yard outside, his budgerigars rattle at their rusty cages.

庭院里，他的虎皮鹦鹉在锈迹斑斑的笼中嘎嘎哀鸣。

In the yard outside , his budgerigars rattle at their rusty cages.

庭院里, 他的虎皮鹦鹉在锈迹斑斑的笼中嘎嘎哀鸣.

New Zealand-based authors Robert and Brenda Vale base their findings on the amount of land needed to grow food for pets ranging from budgerigars to cats and dogs.

新西兰作家罗伯特和布伦达·威尔通过研究种植宠物（涉及范围从鹦鹉到猫和狗）食物所需的土地数量，得出这项研究结果。