Chris Sloan, Gary Brunvoll, Jeffrey Schaarschmidt and I spent 3 days and a brief morning birding Puerto Rico. We used the services of Julio Salgado https://www.puertoricobirdingtrips.com/, and saw all of the currently recognized Puerto Rican endemics, and all but one of the West Indies specialties possible there (Antillean Crested Hummingbird only miss).
Of course birding will be much different now after the devastating hurricane last year, but hopefully will fully rebound.