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| The Rufous Casiornis, Casiornis rufus (Vielliot,
1916), is widespread in central South America, reaching
its southernmost distribution in northern Argentina
and Uruguay. Here we present the first nine records
of the species for Rio Grande do Sul state, southern
Brazil. The records were documented with photographs
and consisted mostly of lone individuals observed in
riparian forests inserted in a matrix of grasslands and
rice fields. The Rufous Casiornis apparently occurs in
very low densities in the region. More observations
are needed to elucidate its status of occurrence in Rio
Grande do Sul. | |
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