Complete the notes below.

Write ONE WORD ONLY for each answer.

Research on birds in Australia

The study Cunningham in 1995

It aimed to study birds which were 31 ……. In cities

•    Methodology

- Researchers were able to 32…... rather than count the number of birds by some methods, such as random sampling.

- Researchers studied bird's companionship habits using a 33… system.

- Research attached tags to birds' legs to identify their 34.... over time.

•    Findings

- Birds tended to choose the same nesting site in which they were raised

- Human activities such 35.... Had a negative effect on the reproduction of birds

•    Measures taken by local organisation

- To increase birds' rate of 36….in various ways

- To reduce the dangers caused by 37... farms, e.g.., colliding with turbines

•    The study by Conway in 2006

- Researchers monitored the 38... of birds' nocturnal callings during flight

- 39....were taken to listen to birds' sounds

- Data could be collected through noise direction devices placed at a great 40……