Readers’ wildlife photos

May 7, 2021 • 9:06 am

By Greg Mayer

The following photos were sent to me by a colleague, and were taken during a trip to Costa Rica during December, 2011- January, 2012. We’ll start with the crocodiles of Rio Grande de Tarcoles, which are an attraction for both Costa Rican and foreign tourists, who gather at the highway bridge to see the many large crocodiles gathered there. I was told on one of my visits there that there used to be some sort of slaughterhouse or rendering plant, and that the offal was dumped in the river, which initially attracted the crocodiles. People now feed them, although I think this is officially discouraged.

American Crocodile, Crocodylus acutus, Rio Grande de Tarcoles, Costa Rica, January 2012.
American Crocodile, Crocodylus acutus, Rio Grande de Tarcoles, Costa Rica, January 2012.
American Crocodile, Crocodylus acutus, Rio Grande de Tarcoles, Costa Rica, January 2012.

She also saw crocodiles on a trip to Tortuguero.

American Crocodile, Crocodylus acutus, on boat trip to Tortuguero, Costa Rica, January 2012.

Also at Tortuguero was this heron, a widespread species which is also found in the southeastern US, breeding at least as far north as New York.

Yellow-crowned Night Heron, Nyctanassa violacea, Tortuguero, Costa Rica, January 2012.

A visit to the area of Fortuna revealed a couple of species of mammals. This is a normally colored Mantled Howler Monkey,

Non-blonde Mantled Howler Monkey, Alouatta palliata, N of Fortuna, Costa Rica, January 2012.

while this one is “blonde”; I’ve never seen a howler of this color myself.

Blonde Mantled Howler Monkey, Alouatta palliata, N of Fortuna, Costa Rica, January 2012.

There were also bats.

Proboscis Bats, Rhynchonycteris naso, N of Fortuna, Costa Rica, January 2012.

And last but not least, because they are practically honorary cats, a squirrel from Volcan Poas.

Variegated Squirrel, Sciurus variegatoides, Volcan Poas, Costa Rica, December, 2011.

6 thoughts on “Readers’ wildlife photos

  1. Love those pictures – the bats particularly!

    But I am curious about the inner ears of bats & other creatures like small birds that hang upside down. Why do they not get dizzy!? Why does the blood not rush to the head? Do they have extra valves to stop the blood doing that?

  2. Those reptiles are impressive. Nothing like seeing a massive reptile in person. I’ve only seen alligators in person once- Florida. Lovely ancient beasts.

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