Withdrawing larvae (botflies) – Shiny Cowbird bonariensis bird

The Shiny Cowbird is known to remove larvae, particularly those of botflies, from the nests of other birds. This behavior is called “nest parasitism,” and it can have both positive and negative effects on the host bird species.

While the removal of larvae can help to keep the nest clean and prevent the spread of disease, the Shiny Cowbird may also lay its own eggs in the nest, leading to competition for resources and potentially harming the host bird’s offspring. Some other interesting facts about the Shiny Cowbird include: