Here's a list of the birds I saw on our trip, with the lifers in bold. There weren't a whole lot of opportunities for serious birding, but still saw a few good ones. I finally ticked the Antillean Crested Hummingbird at the last possible moment, from the waiting room at the airport on our way out.
American Kestrel
American Oystercatcher
Bananaquit
Belted Kingfisher
Brown Booby
Brown Pelican
Cattle Egret
Cave Swallow
Common Ground-Dove
Gray Kingbird
Greater Flamingo
House Sparrow
Laughing Gull
Magnificent Frigatebird
Mourning Dove
Northern Mockingbird
Rock Pigeon
Royal Tern
Scaly-naped Pigeon
White-winged Dove
Zenaida Dove
Puerto Rican Lizard-cuckoo
Antillean Crested Hummingbird
Caribbean Martin
Pearly-eyed Thrasher
Red-legged Thrush
Puerto Rican Tanager
Greater Antillean Grackle