Studies about diet of birds in

No abstract

This study describes aspects of the life history of the Tropical Mockingbird Mimusgilvus (Vieillot, 1808), including the breeding period, clutch size, nestlings and a list of plants used for nesting. Nests were monitored in an area of Restinga (sand-coastal plain) habitat in a protected area in southeastern Brazil. The data from 181 nests during five breeding seasons (2010-2014) showed that the Tropical Mockingbird has a long breeding season (26.1 ± 2.6 weeks) with up to two peaks of active nests from August to March. The breeding pairs made up to four nesting attempts in the same breeding season. The mean (± SD) clutch size was 2.4 ± 0.6 eggs (n = 169). The mean (± SD) incubation period was 14 ± 0.6 days, and the nestling remained in the nest for 14.5 ± 2.2 days. The nests were built on thirty plant species, and Protiumicicariba (DC.) Marchand. was the plant species most commonly used for nesting. The breeding parameters of the Tropical Mockingbird are similar to those of other Mimidae species. The knowledge gained from this study makes the Tropical Mockingbird a good choice for future studies, particularly for testing ecological and evolutionary hypotheses regarding life history attributes, habitat selection and parental investment.

Abstract:We present a review on the range of the endemic and near-threatened Rio de Janeiro Antbird Cercomacra brasiliana, based on new field records and extensive search in literature, museums and bird sound databases. Our records extend the species' known range over 200 km westwards to the hinterlands of Minas Gerais state. Nevertheless, no records were done within federal or state reserves, and the conservation of the remaining forest fragments where the species was recorded is urgent.