Wednesday, February 12, 2020

Costa Rica - Birds III

It's time to show some photos of birds again. I will always be focused on herpetofauna, but I have to admit that birding has also become a passion of mine. I don't have the best camera gear for bird photography, but with my 400 mm I can still get nice shots... these are some of my favorites: 

Pyrilia haematotis - Brown-hooded Parrot
Pyrilia haematotis - Brown-hooded Parrot

Ramphastos sulfuratus - Keel-billed toucan
Ramphastos sulfuratus - Keel-billed toucan

Crax rubra - Great Curassow
Crax rubra - Great Curassow

Sarcoramphus papa - King Vulture
Sarcoramphus papa - King Vulture

Ceratopipra mentalis - Red-capped Manakin
Ceratopipra mentalis - Red-capped Manakin

Thursday, February 6, 2020

Wide angle herps

I recently bought the LAOWA 15 mm. Now it was about time to try the new lens in the rainforest. It can be difficult to take pictures of wild animals, because you need to get very close to the motive. Also all the settings must be done manually and the live view doesn't really work. It took some practice and patience, but I am very happy with the results. 

Dipsas bicolor - Two-colored Snail-eater
Dipsas bicolor - Two-colored Snail-eater
My personal highlight and lifer was this beautiful Two-colored Snail-eater (Dipsas bicolor). With the low angle shot, I want to emphasize their aboreal behaviour.

Dipsas bicolor - Two-colored Snail-eater
Dipsas bicolor - Two-colored Snail-eater
The "it's coming right at me" picture shows nicely the giant eyes of this nocturnal snake. Using the LAOWA lens, I mostly set the aperture between f/16 and f/32.

Oophaga pumilio - Strawberry Poison Frog
Oophaga pumilio - Strawberry Poison Frog
In some areas the Strawberry Poison Frog is very common. It is still always really cool to encounter these little jumping rubies. Since I have many "regular" macro shots of these frogs, I wanted to include the habitat in this picture.

Oxyrhopus petolarius - Forest Flame Snake
Oxyrhopus petolarius - Forest Flame Snake
I have seen several specimen of the Forest Flame Snake, also called Calico Snake, but it was the first time I found a juvenile one. The yellowish / white color will turn to red when they grow older. This is a coral mimic rear-fanged snake, completely harmless to humans. 

Corytophanes cristatus - Helmeted Iguana

The Helmeted Iguana has a highly variable coloration. This is the only one I have seen so far with a beautiful blue pattern. They are ambush pretadors and barely move at all, so it can be very hard to spot them.

Imantodes cenchoa - Blunthead Tree Snake
Imantodes cenchoa - Blunthead Tree Snake
One of the commonly seen snakes during the night hikes in Costa Rica is the Blunthead Tree Snake. I had a picture like this in mind for a long time and thanks to my new lens and some luck, I actually got it now. The snake was climbing down from a palm leaf and I seized the opportunity for this tongue shot.


Thursday, January 23, 2020

First frogs of the year

I am back in Costa Rica to work for another two months as a naturalist guide. It's always great to be here and admire the rich biodiversity. The night hikes are mainly focused on frogs... so here are a couple of the first species I found. Beginning with the most famous one: Red-eyed Tree Frog (Agalychnis callidryas).

Agalychnis callidryas - Red-eyed Tree Frog
Agalychnis callidryas - Red-eyed Tree Frog

This tiny juvenile Dwarf Glass Frog (Teratohyla spinosa) measures around 1 cm (0.39 in). Finding this adorable frog in the rainforest was like finding a needle in a haystack. A very common, still beautiful species is the Masked Tree Frog (Smilisca phaeota). I found one posing nicely on a vine. Another really cool sighting of the first tours was a Reticulated Glass Frog (Hyalinobatrachium valerioi).
 
Teratohyla spinosa - Dwarf Glass Frog
Teratohyla spinosa - Dwarf Glass Frog

Smilisca phaeota - Masked Tree Frog
Smilisca phaeota - Masked Tree Frog

Hyalinobatrachium valerioi - Reticulated Glass Frog
Hyalinobatrachium valerioi - Reticulated Glass Frog