The Gray Squirrel is considered polygynandrous. Another way of saying that they are promiscuous and a female may mate with several males. Actually, it’s unclear to me if she has that much choice in the matter or if those males who may follow the first have any chance at fertilization. After the less than 30 second copulation and ejaculation, a gelatinous white vaginal plug forms, preventing further sperm entry. It looks like the joke is on everybody but Number One.
Though unlike what occurs with some species of bird, I don’t see the other male squirrels running over to interrupt the copulation.
Species: Sciurus carolinensis