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This bare-
throated tiger heron was in the bushes along the banks of the
Tempisque River in
Palo Verde National Park. Hopefully, it will stay clear of the crocodile shown in yesterday's photo.
I assume that the bare-
throated tiger heron got its name from the stripes on its back (and, of course, its white throat). It is known locally as the
garza-
tigre cucillinuda, or
garza for short. Its scientific name is
tigrisoma mexicanum. It can reach 80 cm (2.7 ft) in length.
Herons are relatives of egrets, such as the
snowy egret posted on July 2. The most unusual member of the heron/egret family is the boat-billed heron, which I will show in the future.
Yesterday's and today's photos came from
Palo Verde National Park, which is about an hour southeast of
Tamarindo. It offers a contrast to
Rincon de la
Vieja National Park, whose volcanic activity and forests were the subject of the five previous posts.
Palo Verde National Park consists of the wetlands and river delta in the area where the
Tempisque River flows into the top of the Gulf of
Nicoya. It has the largest number of wading birds in
Meso-America (the area from Costa Rica through southern Mexico).
Rather than build levees and dams as would occur in industrialized countries such as the USA or China, the Costa
Ricans had the wisdom to leave the flood plain as natural wetlands that flood each year and provide habitat for wildlife.
Palo Verde National Park is one of seven sites in Costa Rica that were designated as Wetlands of International Importance by the 1971 International Convention on Wetlands. These sites are are known as "
Ramsar Sites," named after the city in Iran where the convention was held (in very different political times).
One of the other
Ramsar Sites is right next to
Tamarindo -- the
Tamarindo Wildlife Refuge, which is the
Tamarindo estuary that flows into the ocean along the north edge of the town.