Avistamiento realizado por Juan Abarca, Gilbert Alvarado y Víctor Acosta. Macho juvenil. Especie considerada extinta por IUCN hasta el año 2009 (Abarca J, Chaves G, García-Rodríguez A, Vargas R (2010) Reconsidering extinction: Rediscovery of Incilius holdridgei (Anura: Bufonidae) in Costa Rica after 25 years. Herpetological Review 41, 150-152.).

Observation made by Juan Abarca, Gilbert Alvarado and Víctor Acosta. Juvenile male. The species was considered extinct by IUCN until 2009. Abarca J, Chaves G, García-Rodríguez A, Vargas R (2010) Reconsidering extinction: Rediscovery of Incilius holdridgei (Anura: Bufonidae) in Costa Rica after 25 years. Herpetological Review 41, 150-152).

Costarican Amphibian Population Status http://www.cbsg.org/cbsg/workshopreports/26/anfibios.pdf

See a video about this observation here: http://youtu.be/8zFk37E3H6Q

Information about ecology : http://www.amphibians.org/wp-content/uploads/2012/05/FrogLog102.pdf (page 10)