| Laguna de Sonso | |
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| Location | Valle del Cauca Colombia |
| Nearest city | Buga |
| Coordinates | 3°52′12″N76°2′13″W / 3.87000°N 76.03694°W /3.87000; -76.03694 |
| Area | 2,045 ha (7.90 sq mi) |
| Established | 1978 |
| Governing body | CVC |
| Official name | Complejo de Humedales del Alto Rio Cauca Asociado a la Laguna de Sonso |
| Designated | 14 February 2017 |
| Reference no. | 2403[1] |
TheLaguna de Sonso Nature Reserve is located in theValle del Cauca Department ofColombia. It contains the last extensive remnant of original natural wetland remaining in the Cauca River Valley in western Colombia, and was declared a nature reserve in October 1978. It comprises a series of marshes and lagoons on the east bank of theCauca River, between the municipalities ofBuga,Yotoco andGuacari. It has an area of 2,045 ha (7.90 sq mi), lying at an altitude of 935 m (3,068 ft). The wetlands are affected by the introducedwater hyacinth. The reserve has been designated as a protectedRamsar site since 2017.[1]
Birds recorded from the reserve include thefulvous whistling duck,blue-winged teal,osprey,wattled jacana,black-necked stilt,cocoi heron,striated heron,anhinga andneotropic cormorant. Of special interest are thegrayish piculet,apical flycatcher,bar-crested antshrike and thescrub tanager. The reserve also supports the only remaining population of thehorned screamer in the region.
Mammals found there includecommon opossum,Pallas's long-tongued bat,common vampire bat,tapeti,capybara, andnine-banded armadillo. There are alsocane toads andcommon snapping turtles, as well as several native and introduced fish species which provide the basis of a local fishing industry, including the nativeProchilodus magdalenae which uses the wetlands forspawning.
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| Flora and Fauna Sanctuaries |
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| National Natural Reserves |
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| Unique Natural Area | ||
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| Regional Nature Reserves | ||
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