Biology:Grey elaenia
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Grey elaenia refers to birds that had been considered one species and have been split into three species:
- Gray-headed elaenia, Myiopagis caniceps
- Choco elaenia, Myiopagis parambae
- Amazonian elaenia, Myiopagis cinerea
Original source: https://en.wikipedia.org/wiki/Grey elaenia.
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