Pexels Free to Use License: 
https://www.pexels.com/license/

Bird Video: 
https://www.pexels.com/video/close-up-view-of-a-parakeet-4982611/
Free to use video by pexels.com user "Ajaya Bist"

Ship Video:
https://www.pexels.com/video/aerial-footage-of-a-cargo-ship-at-sea-loaded-with-containers-2943126/
Free to use video by pexels.com user "Alexander Bobrov"

Guitar Video:
https://www.pexels.com/video/man-playing-guitar-854924/
Free to use video by pexels.com user "Pixabay"