How long can a swift fly without landing?

Related questions

1. What is a flock of swifts called?
2. How long does a swallow bird live?
3. Do Swifts ever land?
4. Which bird sleeps most?
5. How long do Swifts live for?
6. What's the difference between a swallow and swift?
7. Where do Swifts go in winter?
8. Do birds pee?
9. What's the quickest thing in the world?
10. What is a small bird called?

Tags

1. #swifts
2. #claim
3. #university
4. #study
5. #swift
6. #remain
7. #common
8. #according
9. #without
10. #ornithologists
11. #airborne
12. #breeding
13. #landing
14. #period
15. #months
16. #their