Was the Long-tailed Cuckoo an ancient navigators’ guide?

The Long-tailed Cuckoo (Karavia) winters in tropical Polynesia and migrates to New Zealand in October and November to breed by duping other birds to incubate its eggs and raise its young.

The Long-tailed Cuckoo (Karavia) winters in tropical Polynesia and migrates to New Zealand in October and November to breed by duping other birds to incubate its eggs and raise its young.