I was lucky enough to go on a Caribbean cruise recently, visiting Martinique, St Kitts, Tortola, St Maarten, Antigua, Grenada, St Lucia & Barbados. The following were seen without any real effort 

1. magnificent frigatebird
2. American white pelican
3. brown pelican
4. red-billed tropicbird
5. masked booby
6. brown booby
7. lesser black-backed gull
8. laughing gull
9. royal tern
10. little egret
11. snowy egret
12. great blue heron
13. great egret
14. cattle egret
15. green heron
16. spotted sandpiper
17. common gallinule
18. peregrine
19. broad-winged hawk
20. osprey
21. Caribbean martin
22. scaly-naped pigeon
23. common ground dove
24. eared dove
25. zenaida dove
26. feral pigeon
27. Eurasian collared dove
28. African collared dove
29. green-throated carib
30. belted kingfisher
31. grey kingbird
32. cocoa thrush
33. scaly-breasted thrasher
34. bananaquit
35. shiny cowbird
36. carib grackle
37. Lesser Antillean bullfinch
38. Barbados bullfinch
39. black-faced grassquit
40. house sparrow

cheers Kevin