Birding Puerto Rico is a company which offers both private and small group bird spotting trips.
Puerto Rico is a place that owns more than 350 bird species of which 17 are endemic, so there is plenty to see and discover.  The rainforest, dry forest, cliffs, mangroves, mountains and waterfalls are the main reason why there are so many Caribbean species of bird. Birding Tours offers plenty of tours that last from four days to eight days and include plenty of locations across Puerto Rico. However, we warmly recommend the Custom endemic + Caribbean + tour that lets you add other activities such as snorkeling, diving, zip-lining and plenty more to the main bid spotting tour creating an adventure that you'll remember for the rest of your life. 
Birding Puerto Rico also offers bird spotting tours to other destinations such as the Dominican Republic and in the US near Detroit.