The term 'BIRD AT A CONSTRUCTION SITE' can be summarized as a CRANE, which is a large piece of machinery used to lift and move heavy objects. Cranes are commonly used in the CONSTRUCTION industry to move materials such as steel beams, concrete, and other building materials. They are also used to lift and place large objects such as pre-fabricated buildings or bridges. Cranes are typically operated by a trained operator who is responsible for controlling the CRANE's movements and ensuring safety.