Passing on a note from Heidi Ware Carlisle:
Adding a note here so that others interested in this sighting will see it: DO NOT USE PLAYBACK ON THESE BIRDS.
This is an endangered species, the ABA Code of Ethics states that playback should never be used on threatened or endangered species.
I need to look into it more, but in many cases for threatened species (e.g. western Yellow-billed Cuckoo) it is actually a violation of federal law to use playback on them.
https://sc.audubon.org/news/using-bird-calls-ethically
This is an endangered species, the ABA Code of Ethics states that playback should never be used on threatened or endangered species.
I need to look into it more, but in many cases for threatened species (e.g. western Yellow-billed Cuckoo) it is actually a violation of federal law to use playback on them.
https://sc.audubon.org/news/using-bird-calls-ethically