I want to know the answer to the following question:
What do water birds avoid while migrating?
All the background I'm provided with is that "The same considerations about barriers and detours that apply to long-distance land-bird migration apply to water birds, but in reverse: a large area of land without bodies of water that offer feeding sites may also be a barrier to a bird that feeds in coastal waters.". Is that enough to answer the question?
Answer: yes