RECORD OF ABERRANT PLUMAGE IN Cyclarhis gujanensis (AVES: VIREONIDAE) IN SOUTHERN BRAZIL

Cases of birds with aberrant coloring are not an uncommon sight in the wild, but they need to be documented in specialized literature. These abnormalities may be associated with distinct factors, which can be environmental, genetic, food, diseases, exposure to parasites and age, causing increase and/or reduction of melanin, such as carotenism, in the affected species. We are presenting a report of Rufous-browed Peppershrike (Cyclarhis gujanensis) with aberrant coloring in southern Brazil. The specimen had some feathers in the head’s region depigmented to a whitish hue, mixed with feathers presenting regular coloring. Other bare parts and the remaining plumage present normal color. The report is about progressive graying, in what we believe is the first record of aberrant coloring for C. gujanensis through its known distribution

REGISTRO DE LEUCISMO EM Turdus leucomelas Vieillot, 1818, NO SUL DO BRASIL

O presente estudo descreve o registro de leucismo em indivíduo de Turdus leucomelas, perímetro urbano, município de Lajeado, Rio Grande do Sul

A PARTIAL LEUCISM CASE IN COLUMBINA PICUI (TEMMINCK 1813) (BIRDS: COLUMBIFORMS), IN SOUTH OF BRAZIL

Apresentamos o registro de um caso de leucismo parcial em Columbina picui no município de São Sepé, Rio Grande do Sul, Brasil

MALOPHAGES IN CRYPTURELLUS NOCTIVAGUS AND CRYPTURELLUS OBSOLETUS (BIRDS: TINAMIDAE) IN THE PAMPA BIOME, SOUTHERN BRAZIL

The current study aimed to identify malophages in a population of Yellow-legged Tinamou (Crypturellus noctivagus noctivagus) and Brown Tinamou (Crypturellus obsoletus obsoletus) in the Pampa Biome, state of Rio Grande do Sul, Brazil. In 250 hours of sampling efforts, using bell-traps, we captured eleven specimens of C. n. noctivagus, and of these, two of them showed occurrence of feather lice. In C. o. obsoletus, four individuals were captured, and of these, three presented lice. In both tinamous, specimens of Strongylocotes complanatus and Heptapsogaster temporalis (Ischnocera, Philopteridae) were recorded. The frequency of occurrence (FO) of these ectoparasites in C. n. noctivagus was of 18,2%, and in C. o. obsoletus, 75%. We thus report in a descriptive manner additional information about the occurrence of these ectoparasites, associated with forest tinamous of the genus Crypturellus, in Southern Brazil

NEW RECORDS OF BIRDS WITH ABERRANT PLUMAGE IN RIO GRANDE DO SUL, SOUTHERN BRAZIL

Apresentamos aqui seis novos casos de aves com coloração aberrante no estado do Rio Grande do Sul, Brasil. Os registros foram realizados em atividades não sistematizadas em campo. Sugerimos progressivo acinzentado para Zenaida auriculata, Turdus rufiventris, Leptasthenura setaria, Molothrus bonariensis e para Sporophila collaris um caso de Diluição – pastel. O estudo contribui com novas informações acerca de anomalias cromáticas em plumagem de aves no sul do Brasil, uma vez que esses casos devem ser divulgados na literatura especializada.We present here six new cases of birds with aberrant coloring in the state of Rio Grande do Sul, Brazil. Records were made via non-systematized field activities. We suggested Progressive Greying in Zenaida auriculata, Turdus rufiventris, Leptasthenura setaria, Molothrus bonariensis and for Sporophila collaris a case of Dilution – pastel. The study contributes with new informations about chromatic anomalies in birds’ plumages in Southern Brazil, since these cases must be divulged in specialized literature.

LISTA ATUAL DA AVIFAUNA NO MUNICÍPIO DE CAÇAPAVA DO SUL, SUL DO BRASIL

Apresenta-se lista atualizada de aves silvestres encontradas no município de Caçapava do Sul, com 206 espécies registradas. Contribuindo assim com informações sobre a ocorrência e distribuição de aves na região Serra do Sudeste, Rio Grande do Sul