It might appear that this buck is talking back to me but he is actually doing what is called the ‘flehmen response.’  A lot of mammals actually do this when they smell something interesting – think of it as them taking a deep whiff of something.  I guess perhaps I was particularly stinky that day?  😉

A deer buck displays the flehmen response at the Rocky Mountain Arsenal National Wildlife Refuge. (© Tony’s Takes)
A deer buck displays the flehmen response at the Rocky Mountain Arsenal National Wildlife Refuge. (© Tony’s Takes)

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