Rainforest soundscapes are extremely diverse and fascinating to listen to, Costa Rica being no exception. The sheer amount of biodiversity results in a rich and varied acoustic environment no matter the size of the stretch of jungle. Insects, frogs, birds, mammals, even trees - they all need to communicate. Rainforests are mostly dark and as a result visual communication isn't possible at great distances. Sound on the other hand propagates fairly well even in a busy setting.
One species has clearly gotten this message. Howler monkeys are considered the loudest land mammal and their terrifying calls travel for miles in thick jungle. They start calling before dawn when the soundscape is mostly a high frequency insect chorus and they continue doing so until after sunrise. They also call sporadically during the day. Their howls serve to advertise territory and avoid physical confrontation with other groups, and they are typical of central and southern American rainforests.
On my Costa Rica expedition I was reacquainted with howler monkey calls after first having heard them in the Amazon a few years prior. Sleeping on an open platform with only a thin mosquito net between me and the outside helped me immerse myself in the landscape, but also made me much more aware of my surroundings. Hearing howler monkeys at 3 am while the jungle is still in complete darkness is a difficult experience to convey using just words. Hopefully this sound recording will do a better job.
Recorded in Corcovado National Park, Costa Rica with Sony PCM A10 and Lom mikroUsi microphones. Enjoying the videos I upload on here? Feel free to support me by:
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