Bird species occuring in rice fields and surrounding habitats at Merin Lagoon watershed, Uruguay
2002
Rodriguez, E. | Arballo, E.
As part of a comprehensive study of bird pest management in rice, we censused birds at four locations in the Merin Lagoon rice-growing region of eastern Uruguay. Study sites were randomly selected and included six different habitat types: rice field (all stages), grassland, irrigation canal, forest, wetland, and wet meadows. Study localities averaged 400 ha and we visited each location 13 times from March 1994 to February 1995 (624 total observation hours). The rice habitat was the most used (more species seen more frequently). Altogether, we identified 121 bird species from 17 orders. Passerines, or perching birds, represented 43% of the total. The chestnut-capped blackbird (Agelaius ruficapillus) was the most common species, and was often present in large flocks feeding on the rice crop. Of the species recorded, 71% breed in the study area. Migratory species represented 15% of the total. Several species classified as rare or endangered were also recorded. The rice crop environment, including surrounding habitats, represents a critical resources for avian populations.
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Эту запись предоставил International Rice Research Institute