Eurasian Swift
http://what-when-how.com/birds/eurasian-swift-birds/

Common Swift (spends 10 months in flight)
https://en.wikipedia.org/wiki/Common_swift

Who needs land? These birds spend 10 months of the year in flight
https://www.latimes.com/science/sciencenow/la-sci-sn-common-swift-flight-20161027-story.html

Bird’s nest soup – Swiftlets nests
https://www.cookingchanneltv.com/devour/2013/05/what-is-birds-nest-soup