I have never been sure WHY squirrels do this, as it's never obvious what the threat is. I'd say it's territorial, but this isn't the time of year for defending babies. There is plenty of food in the yard from all our bird feeders, which they constantly drain. The babies were sort of weedy this year, and the adults don't look so good, smaller, with thin tails, and a lot of fur missing. The huge cedar tree in our back yard is a sort of high-rise apartment tower for birthing and raising their young, and we often see pregnant or nursing squirrels.
Though the ubiquitous blacks aren't very cute this year, the greys with their sweet faces, white tummies and big, fat, puffy silver tails are much nicer-looking, but very rare. In fact, everywhere we've lived, greys are much more rare and look totally different, plumper and prettier. But I have read in many places that the blacks turn INTO the greys. This makes no sense at all, as they are so physically different, and we do not ever see an interim stage as we do with mallards, where the males "fledge" over a period of months.
These days the smaller red squirrels are even more rare. With those, you mainly hear a short, sharp bark that can go on forever. Only once I saw one on the back fence, flapping its tail violently and swearing away, but sounding more like a distressed bird (which I thought it was, initially) than any kind of squirrel. These I very rarely see in the back yard, but when we go on our trail-walks they will approach us fairly timidly, hesitantly, as if hoping for food.
Even as I write this, I hear yet more swearing in the back yard. What is going on here??
Even as I write this, I hear yet more swearing in the back yard. What is going on here??
