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Red Foxes

Red Fox Vixen & Raccoon Encounter

5-27-14 red fox & raccoon 197While observing the antics of a litter of red fox kits recently, I was witness to an encounter between the kits’ mother and a very large raccoon. The vixen started barking incessantly when she saw the raccoon, and slowly moved closer and closer to it until she was within 10 feet of it. After a short standoff, the raccoon lunged towards the fox, which ran a few feet away and then turned and chased the raccoon in the opposite direction. They took turns chasing each other until the fox eventually drove the raccoon away from her den and kits. While raccoons are omnivores, and a large part of their late spring diet is animals (mainly frogs, fish, crayfish and invertebrates, but also mammals, including squirrels, rabbits and young muskrats). I have never heard of raccoons preying on fox kits, but the mother fox’s behavior indicated that she was not comfortable with the raccoon being so close to her litter. (The following day I noticed that the nose of the runt of the litter had been bitten multiple times. Perhaps a coincidence, perhaps not.)

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Turkey, anyone? How Red Fox Kits Entertain Themselves

5-14-14  red fox kit with turkey feather  147This two-month-old Red Fox kit (blue eyes turn brown after the age of two months) amused itself for several minutes with this Wild Turkey tail feather – tossing it up in the air, pouncing on it, chewing it and just carrying it around to impress/taunt its litter mates. Kits are old enough to spend much of their day above ground now and their antics are entertaining, to say the least. While parents are off during the day hunting and/or getting a rest from rambunctious offspring, said offspring amuse themselves by digging, scratching themselves, chasing each other, grooming themselves and chewing on any and everything, from sticks and leaves to the remains of past meals, such as feathers and bones.

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Red Foxes and a Minuscule Mite

red fox IMG_4446A recent glimpse of a Red Fox whose tail was hairless except for a pompom-like tuft of fur at the very tip reminded me of the devastating effect a very small creature can have on an animal many times its size. A tiny, eyeless mite (Sarcoptes scabei) is responsible for the loss of fur associated with sarcoptic mange, the scourge of Red Foxes. After mating on a fox (often near the tail end), the male mite dies and the female burrows into the fox’s skin, laying eggs as she goes. After the eggs hatch, the larvae move to a new patch of skin, burrow in and eventually emerge as adult mites, ready to mate and continue the cycle. To add insult to injury, Red Foxes have an intense immune response to the mites’ excrement and the resulting inflammation is extremely itchy. Biting and scratching exacerbate the situation, causing new skin tears where bacteria can enter. Eventually, most foxes die of exhaustion, starvation and/or infection.

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Red Foxes Preparing Dens

2-25-14  red fox den 013Red Foxes will be begin giving birth in about a month, so the time for preparing their den has arrived. While it’s never very hard to see a fox den (due to the pile of dirt at its main entrance), they are most obvious now, when the dirt removed by the foxes is conspicuous against the white snow. Red Foxes seldom dig their own den. Rather, they take over a woodchuck’s abandoned burrow, or, in some cases, forcibly drive the woodchuck out (and sometimes devour it, as well). They den in woodlands as well as fields, usually on a sandy knoll where they can observe the surrounding territory, and where their den will be well drained. Most dens have one or two main entrances. The tunnel usually slants downward to about four feet beneath the surface and then extends laterally for 20 to 30 feet and resurfaces. An enlarged chamber along the main tunnel serves as a maternity den.

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Fox & Coyote Tracks

1-29-14 red fox and coyote tracks IMG_2095In general, the larger the animal, the larger its feet and the tracks that they leave. Red foxes weigh between 7 and 14 pounds. Coyotes weigh between 20 and 50 pounds. The size of their tracks reflects this difference in weight. In addition, note that the coyote’s toe and metatarsal pads are quite distinct, whereas the furry-footed fox’s are not. (Red Fox tracks on left headed down; Coyote tracks on right headed up.)

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Hide & Seek: Voles & Foxes

1-9-14  hide and seek-fox & vole IMG_2735Unlike wolves, which hunt in packs and often take down prey larger than themselves, red foxes are solitary hunters and as a result often catch prey much smaller than themselves, such as mice and voles. During the winter, mice and voles become more active during daylight hours because much of their time is spent under the snow, where they remain hidden from view. Consequently, in winter you’re more likely to see a fox hunting during the day than in the summer. Whenever it’s hunting, night or day, a fox depends heavily on its acute sense of hearing. It is most sensitive to lower noises such as the rustling and gnawing sounds that small animals make as they move through vegetation or feed on seeds, buds and twigs. Foxes can locate these sounds several feet away, to within inches of their true location, under three feet of snow. Recent research suggests that they may also use the magnetic field to help them locate prey. (photo: red fox & meadow vole tracks)

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Tracks Reveal Spotted Salamander Defense Mechanism

12-11-13  spotted salamander & fox tracks3 007Red Foxes have a very diverse diet – birds, small mammals, snakes, frogs, eggs, insects, fish, earthworms, berries, fruit — the list is endless and this diversity is part of the reason that foxes thrive in almost any habitat. However, the fox whose tracks I was following recently passed up a meaty meal – that of a Spotted Salamander. The story the tracks tell suggests that the fox dropped the salamander after unearthing it from its hibernaculum and carrying it some distance. It’s likely that it had detected the sticky white toxic liquid that Spotted Salamanders secrete from poison glands in their skin when they are threatened. Unfortunately, detection did not occur in time to save the salamander’s life. Either its experience with the fox and/or freezing temperatures killed the salamander, preventing it from going back into hibernation. (Note red fox tracks to right of salamander.)

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