If you are among the 60 million Americans who enjoy bird-watching, you’ll be happy to know that there is no shortage of luxurious retreats located in significant birding spots across the globe. Many of them have on-site naturalists or connections to guides who will train their scopes on rare species for their guests. But though the thought of vacationing amid bright feathered beings is cheering, it is also the case that 14 percent of all bird species are endangered. Many of the hotels on this list are helping with conservation efforts, which makes your patronage even more significant.