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Red-eyed Tree Frogs

Posted on Jan 25, 2014

When I’m not engrossed in avian research my focus gets drawn to reptiles and amphibians. While visiting the Karen Mogensen Nature Reserve we found this nice population of Pacific phased Red-eyed Tree Frogs (Agalychnis callidryas).

Red-eyed Tree Frog (Agalychnis callidryas)

Red-eyed Tree Frog (Agalychnis callidryas) eye

Around the main pool we found a few masses of eggs that were in various stages of development.

Red-eyed Tree Frogs (Agalychnis callidryas) eggs

The next find was particularly exciting for me – individuals in amplexus. That means during the courtship of this species the female carries the male on her back before copulation.

Red-eyed Tree Frogs (Agalychnis callidryas) amplexus

Red-eyed Tree Frogs (Agalychnis callidryas)
We proceeded to find a few other individuals in the immediate vicinity. Although it is more or less the face of nature in Costa Rica it is always amazing to see this species in all stages of its life cycle.


Sean Graesser
RTPI Affiliate

Photos © Sean Graesser