Birds observed in Costa Rica, December 2005 - Photos and video clips of birds observed by David Magney at various parks in Costa Rica. - http://www.magney.org/photofiles/CostaRica-BirdsPhotos1.htm
Bird Songs of Santa Rosa National Park - A collection of twenty-five plus recordings from Santa Rosa National Park - http://web2.uwindsor.ca/courses/biology/dmennill/CostaRica/CRMain.html
La Selva Birds - Scientific and English common names of the 420+ species recorded from the La Selva Biological Station in Costa Rica. - http://www.ots.ac.cr/en/laselva/species/birds.shtml
Palo Verde, Costa Rica Bird List - English and Spanish common names, along with scientific names of species recorded from Palo Verde National Park in Costa Rica. - http://www.ots.ac.cr/en/paloverde/species/birds.shtml
Sights and Sounds of Costa Rica - Doug Von Gausig's birding trip to Costa Rica in June 1998, with sound clips of dozens of species. - http://www.naturesongs.com/costa.html