There are many different species of birds in Costa Rica, including many birds that are endemic to Costa Rica. There are 7 known birds which are endemic to Costa Rica, including one extinct species.
Cocos Island Cuckoo-
Coccyzus ferrugineus
Coccyzus ferrugineus
http://www.costaricagateway.com/wp-content/gallery/47%20Cocos%20Island%20Species%20WEB/Cocos%20Cuckoo%203.jpg
Mangrove Hummingbird-
Amazilia boucardi
Amazilia boucardi
http://farm5.staticflickr.com/4142/4910378735_1887db7868_z.jpg
Coppery-headed Emerald-
Elvira cupreiceps
Elvira cupreiceps
http://upload.wikimedia.org/wikipedia/commons/7/78/Coppery_headed_emerald.jpg
Cocos Island Flycatcher-
Nesotriccus ridgwayi
Nesotriccus ridgwayi
http://cdn1.arkive.org/media/79/792A3691-040D-469C-85B3-614178E0F535/Presentation.Large/Cocos-flycatcher-perched-on-branch.jpg
Cocos Island Finch-
Pinaroloxias inornata
Pinaroloxias inornata
http://1.bp.blogspot.com/_s5ontW7DcbI/TNhcuZcVGKI/AAAAAAAAAhU/EWiYs5DUn3k/s1600/Cocos+finch+Pinaroloxias+inornata.jpg
Black-cheeked Ant Tanager-
Habia atrimaxillaris
Habia atrimaxillaris
http://www.abcbirds.org/picts/bird_of_the_week/large%20pics/Black-cheeked-Ant-Tanager_Daniel-Lebbin.jpg