One of the most common neotropical migrant warblers in Costa Rica is the Chestnut-sided Warbler (Dendroica pensylvanica). They were everywhere we went in November,1998. You generally hear only the calls of the migrant warblers there. This one was recorded on the grounds of "El Gavilan", where I like to stay when in the La Selva area.
To cite this page:
Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2013. The Animal Diversity Web (online). Accessed at http://animaldiversity.org.
The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.