In the reserve you can observe species of birds from the highest part of the forest as well as inshore species that inhabit trees present as West Indian mahogany (Swietenia mahagoni, Maquenque and golden fruit).
Mistico Arenal Hanging Bridges Park is an ideal place for trekking for bird watching and the preference of the guides specialists of the area to carry out observations and successfully count species of both local and migratory birds. The excellent visibility from the bridges also allows you to appreciate the massive migrations of birds of prey between November and February of each year.