The Annulated Tree Boa is a large arboreal species that inhabits the Caribbean side of Costa Rica. Unlike other Boa species like the Mesoamerican, one morph of this species are brownish-red in color, which renders them rather conspicuous against the dark green background in the tropical rain forest. Their nocturnal habits and preference for staying high in the trees make them difficult to spot. The color pattern consists of a series of diamond-shaped blotches, which are darker over the dorsum and lighter towards the venter. Some individuals have a cream base color instead of the brownish-red of the specimen shown below.
Purple Gallinules are some of the most brightly colored birds that you can see walking in Costa Rica. Indeed while they can also fly, they more commonly wade in shallow waters and in dense grass plains, looking for prey. I have seen them in Palo Verde in big numbers, and spotted individuals in Rio Frio, where they join chickens and forage in the backyards of houses; indeed I was able to see two adults rearing four young hatchlings, which were still covered in black fluffy hairs, getting along with the chickens just fine. The underside and head is entirely purple with a metallic look, showing a small light blue patch on the forehead. The beak is mostly bright red, with a yellow tip. The upperparts show blue to olive green hues, particularly on the wings. The yellow legs are long, letting them to wade in shallow edges of lagoons without having to swim.
Red Coffee Snake is a non-venomous species of snakes, however most of the body is red, which warns potential predators not to come close. People ask me if this is a Coral or False Coral when they see the pictures, but it only bears a small resemblance. It lacks any ring patterns and is very slim, two traits that can help in identification. Its forehead is black, and it has a black mark on the back as well, just before the red body skin starts. With its elongated and thin body, one might think it is just a worm. It is found in Mexico and Central America.
The Pale-vented Pigeon is relatively large sized, only falling shart to the Scaled and Band-tailed Pigeons. Unlike the Band-tailed, which is found in the higher elevations of Costa Rica, it inhabits the lowlands on both the Caribbean and Pacific coasts, along the northern region up to the border with Nicaragua, a range that is almost entirely shared with the Scaled Pigeon. In terms of appearance, it resembles a Red-billed Pigeon, but with a gray head, black bill and white belly and vent; also the wing has more red on the shoulder region than a Red-billed Pigeon. Like the other mentioned species, they are mostly arboreal, although when living within human settlements they can be found perched on man-made structures or walking in the ground as they grab food leftovers.
The White Ibis is, well… entirely white in plumage. When spotted from a distance it can resemble a Great Egret, Cattle Egret or Snowy Egret, however the pink legs and face, along with the long, skinny downcurved bill is diagnostic. The tips of the wings are black, although that is only visible during flight. The juvenile has brown upperparts, and the neck is striped in brown and white, with gray legs and a darker bill. It is found in ponds and marshes in Guanacaste and the northern area of the country; also along the pacific coast of Costa Rica. Given its habitat, they usually wade in the shallow waters and mudflats, where pick small crustaceans and fish, just like Egrets do.
The Hairy Woodpecker is a common inhabitant in Costa Rica’s highlands. It is the same size as the Black-cheeked Woodpecker (which only inhabits the Caribbean lowlands), and hence smaller than the Acorn Woodpecker (which does occur on the highlands). It resembles both species by having black wings, but the face patterns is very different to them, with black and white stripes and just a small reddish patch on the nape. They also lack the barring and streaking that the Black-cheeked and Acorn show on their underparts. Normally woodpeckers are seen, well… pecking at wood, but we saw this individual pecking at the ground, which seemed pretty unusual. It was also totally unconcerned with our presence; a whole group of 15 people could get to within two meters and it would still not fly away. That’s when I decided to follow it around, trying to get a close up portrait, and this was the result.
The Acorn Woodpecker is one of Costa Rica’s largest species, only topped in length by the Lineated and Pale-billed Woodpeckers. The funny-looking pattern on its face earns it the local name “little clown”, with a conspicuous red crown, and a black and yellowish-white mask that cover the face and throat. The iris is almost white, and the bill is black. While the back and wings are entirely black, the chest has black and white streaking, and the belly is white. The female can be identified by a small black patch on the front of the crown, whereas the male’s crown is entirely red. Their inhabit the highlands, particularly Cerro de la Muerte (Buenavista) and Cordillera de Talamanca, where they are very common. Their call display is also very showy when compared with other Costa Rica woodpeckers, swinging their body from one side to the other while giving their calls away.
The Hepatic Tanager is very similar to the Summer Tanager, albeit with darker colors, and the fact that the Hepatic Tanager is resident to Costa Rica helps to identify it from April to September when the Summer Tanager has not arrived to Costa Rica yet. They usually are seen in the middle elevations of the country, in cloud forest reserves like El Copal.
The Strawberry Poison Dart Frog, along the Green and Black Poison Dart Frog, are one of the common diurnal species that can be found in tropical rain forests in Costa Rica, particularly at the Caribbean side. It is common to go hiking and see these bright red and blue frogs suddenly jump from the trail. Due to the color of their legs, they are also called the “Blue Jeans”, although in Costa Rica some individuals are found that have red legs and arms, and in other countries like Panama there are many more morphs with entirely different color patterns. Regardless of the specific colors, they are very conspicuous and do not camouflage well on the leaf litter that tends to be brown to black. They are tiny when compared with many Tree Frogs.
As with the Green and Black Poison Dart Frog, caution must be taken not to touch these frogs when photographing them with macro lenses, as their skin is poisonous and any contact of their secretions with our eyes, nose or mouth can cause much discomfort. While handling them does not produce any symptons, if one is careless, then it is possible to touch one´s sensible organs with the hands and experience significant effects, up to partial blindness.
This species has a mostly green body, with light blue patches in some dorsal parts. The eye is yellow with an horizontal black pupil. The disks at the end of the fingers are expanded, featuring a yellowish coloration. The best field mark for identification is the red webbing between its fingers, just like its name suggests. It is mainly nocturnal, hence not commonly seen during the day. It is curious how the skin color of this frog species changes from day to night time. During the day, the color is similar to a turquoise, while in the night the skin turns yellowish.
A friend of mine found an individual on the edge of the trail that leads to the Agami colony at Pacuare Reserve. It was late in the day, so it was still sleeping and let me have a half-hour photoshoot session with it without a single sign of being disturbed. One of the shots was taken only using natural light during a fairly strong wind that constantly moved the leaf up and down. I thought of artificially creating the night, although the frog was still sleeping. To create the black background on the second picture, I lighted the frog from very close using a bike lantern. The light did not need to be very powerful, since at macro distances the difference between the light intensity at the subject and the background can be exaggerated.