A birdcage (or bird cage) is a cage designed to house birds as pets. Antique (or antique-style) birdcages are often popular as collectors' items or as household decor but most are not suitable for housing live birds, being too small, or of unsafe materials or construction.ood quality cages designed for pet birds are more suitable. Most parrot cages are made or wrought iron and painted with a non-toxic paint referred to as powder-coating. However, the newest trend in the market is cages made of solid stainless steel.
A viewport is a 2D rectangle that defines the size of the rendering surface onto which a 3D scene is projected.
View buttons. 1. In Microsoft Office programs such as Excel, PowerPoint, and Word, the view buttons are a feature that lets you change how the presentation or document appears. In the picture is an example of how the view buttons appear in Excel, PowerPoint, and Word in the bottom right corner of the program. For example, in Microsoft Excel, you have the option of changing the views to Normal, Page Layout, and Page Break Preview.