On 6 October 2011, Michael Patrikeev found an unusual elaenia nesting in a sapling at the REGUA wetland. Elaenias are difficult to identify, however, careful field observations and analysis of photos identified the species as Small-billed Elaenia Elaenia Parvirostris. This record not only constitutes the first breeding record for REGUA, but also for Rio de Janeiro state.

To download and read Michael Patrikeev’s excellent article click here.