1. What is the lecture mainly about?
A. Improvements in bird-tracking technology over time
B. Advantages and disadvantages of satellite transmitter tags
C. New research on the behavior of two similar bird species
D. Factors that have caused birds to change their migration patterns
2. Why does the professor mention numbered metal bands?
A. To point out the most effective bird-tracking method
B. To describe an early attempt at bird tracking
C. To demonstrate how biologists research the behavior of individual birds
D. To explain how transmitting devices are placed on small birds
3. According to the professor, what factors affect the flight progress of Swainson’s thrushes? Click on 2 answers.
A. Wind speed
B. Ocean currents
C. Cloud cover
D. Air temperature
4. What is the professor’s opinion about research that uses radio transmitters?
A. It has not provided much useful information
B. lts results contradict most other research findings
C. It is very inconvenient for the researcher
D. It is more practical for some bird species than others.
5. What point does the professor make about the primary stops along the godwits’ migratory route?
A. Godwits stop at different primary sites from year to year.
B. Global warming has forced godwits to change their primary stop sites.
C. The primary sites must be preserved if the godwit species is to survive.
D. The primary sites’ locations limit the amount of information scientists can gather.
6. What does the professor imply about the timing of the godwits’ departure from Alaska?
A. It is determined by the amount of daylight there.
B. It is influenced by distant weather patterns.
C. It has changed dramatically in recent years.
D. It coincides with the migration of Swainson’s thrushes.
