They could compete for the same food resource or actually hunt the native bird, therefore decreasing the population of the Native bird species.
4.use of images from space
Answer:
Taking antibacterial drugs for viral infections
Explanation
This is called a misuse of antibacterials also popular known as antibiotics. This results in an increased chance of bacteria developing mutations against the antibacterial hence rendering the drugs ineffective in treatment. They also form the risk of causing dangerous mutations that turn harmless bacteria into harmful bacteria.