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Full Version: Why do blackbirds fly against each others?
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Recently I have encountered some noisy male blackbirds.
They seemed to be nervous so I looked if there's maybe a cat or a human nearby, but that wasn't the case.
Then I saw them starting to fly and during the flight two of them hit each others bellies.
I think they do that for two reasons:
1. Showing each others the borders of their territories
2. Impressing females to find a partner for mating