Foxes scream and bark to communicate with each other. This becomes more common during mating season, which is at its peak in January. The most common reason that foxes scream is to attract a mate and during the mating process. Of course, the nighttime hours make the screaming noise more unsettling.
FOX: My cockapoo, Misty, cries! I swear that when she gets upset, like when my husband leaves for work or I have to go out, she sits by the door and sheds real tears. It breaks my heart. On the contrary, their eyes are fine, and they shed tears only when they are emotionally distressed, just like humans.