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Friday, January 18 , 2019, 2:14 am | Fair 54º

 
 
 
 

Outdoors Q&A: Are Fox Squirrels Displacing Gray Squirrels?

There are reports of such a shift occurring in Southern California foothill habitats

Question: I used to have nothing but gray squirrels here in Placerville (about 2,000-feet elevation), but during the past two or three years, my gray squirrels began disappearing and now I have Eastern fox squirrels living in the same trees. It looks like they ran the gray squirrels out. Are the fox squirrels more aggressive than the gray squirrels, and are they expanding their habitat? Sure looks like it. Which brings up another question: I’ve read that they’re good eating and am wondering if any considerations are being made for hunting them? If so, would they be included in the gray squirrel bag, or is the Department of Fish & Game considering a separate bag for them? (Bill K., Placerville)

Carrie Wilson
Carrie Wilson

Answer: The Western gray squirrel is native to California, but the fox squirrel is an introduced species. According to DFG environmental scientist Jessie Garcia, the fox squirrel’s natural range extends throughout much of the Eastern United States, the southern prairie provinces of Canada, the Dakotas, Colorado and Texas. They have been introduced to both Northern and Southern California, and there are reports of Eastern fox squirrels displacing Western gray squirrels in Southern California foothill habitats.

Gray squirrel population numbers fluctuate depending on availability of food, incidence of disease, weather and other habitat conditions. Contributing factors such as heavy snowfall covering stores of buried food, increases in predation pressure, loss of snags, duff, slash or oak trees, and scabies (mange) outbreaks may all be causes contributing to reductions in the local population and may be allowing fox squirrels to occupy this niche.

Tree squirrels (genus Sciurus and Tamiasciurus) are defined as game mammals in the Fish and Game Code (Section 3950) and as resident small game in CCR Title 14 (Section 257). This means that both Eastern fox squirrels (Sciurus niger) and Western gray squirrels (Sciurus griseus) can be hunted and are included together in aggregate to make up one squirrel daily bag and possession limit.

The bag limit is four squirrels per day and four in possession. Before hunting them, check the regulations for season dates, authorized methods of take, and which areas are open and authorize their hunting (CCR Title 14 Sections 307 and 311).

Question: Since only tom turkeys are legal to take during the spring season, how do I prove the sex to an inquiring game warden? Must a wing be left on? A beard left on? Both left on? One or the other left on? (G.B.G.)

Answer: The regulations are intended to require that only tom turkeys may be taken during the spring season, but the law specifically states that the turkey must be “bearded” (a bearded turkey is one having a beard visible through the breast feathers). In most cases a beard will distinguish the animal as male, but in some rare incidents hens may also have them. Keep the beard attached to the carcass until you return to your residence. You may pluck the bird in the field, but remember to keep the beard connected to the body.

Toms and hens can be easily determined by their significant head and wing color differences. If by chance you run across a rare bearded hen, even though the provisions of the law may allow you to take it, we strongly discourage it. Spring is the turkeys’ primary mating and nesting period, so hens may not be harvested in order to protect their production.

Question: Do blue catfish reproduce in California lakes? If not, why? (Mike M., Anaheim)

Answer: Blue catfish can reproduce in lakes provided they have the right cave type of habitats, according to DFG senior environmental scientist Mike Giusti. Spawning blue cats construct nests under overhanging rock ledges along deeply undercut banks and other sheltered places. In lakes that are self-contained where the lake managers purchase the fish from private hatcheries, DFG cannot be sure if those fish were genetically altered for increased growth. If they were, those fish could be infertile.

Question: I would like to get a clear answer regarding the “two rod” stamp. Since I’m an avid surf fisherman, I’m most concerned with the use of two rods when surf fishing on the coast. Thanks. (Joseph Y.)

Answer: A second-rod stamp is required only when fishing in inland waters and may be used only in those areas that do not have special requirements where only artificial lures or barbless hooks may be used. You are allowed to fish with as many rods as you can manage while surf fishing. You may also use multiple rods for other ocean fisheries as long as those fisheries do not have hook or line restrictions (e.g. rockfish, lingcod and salmon have gear restrictions). See Fish and Game Code Section 28.86 for more details.

— Carrie Wilson is a marine biologist with the California Department of Fish & Game. Her DFG-related question-and-answer column appears weekly at www.dfg.ca.gov/QandA/. She can be reached at .(JavaScript must be enabled to view this email address).

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