Remember the Beverly Hillbillies? That was a really lame sitcom; but it was somehow very popular at the time.
Each episode began with the stupid jingle that explains how and why the formerly impoverished but suddenly wealthy Clampetts left their home in Bugtussle and moved to Beverly . . . Hills that is.
As they drive their decrepit Oldsmobile down Bedford Drive just west of downtown, the palms flanking the roadway are prominently visible to the left and right. This strictly regimented collection of Canary Island date palms alternating with Mexican palms was not very big back then, in the early 1960s. By the 1980s, they were strikingly grand. Sadly, they are now deteriorating from old age. Many of the broad Canary Island date palms have succumbed to pink rot, so are now absent. Some of the Mexican fan palms are also lacking. It is saddening to see them now knowing how grand they were not too long ago. Although they are being replaced, they will never be as formal and uniform as they were as a monoculture (or biculture) that was planted all at the same time back in the late Victorian period. Even if it were possible to remove all of the trees and plant new ones at the same time, such conformity went out of style decades ago.
Arborists see these historic trees differently. They know that just one Canary Island date palm is likely infested with rats. Such a grand collection must be infested with a disturbingly large population of rats. Within a canopy of a Canary Island date palm rats, are safe from most predators, and get quite a bit to eat from the fruit produced by the female trees. (Most Canary Island date palms are female, with only a few taller and less billowy male trees for pollination.)
When a Canary Island date palm gets cut down from the base, it falls with a big SPLAT on the ground, followed by a blast of wind containing every Frisbee, baseball, tennis ball, kite and whatever got stuck in the tree over the previous few years. After a brief pause, but before the the baseballs stop rolling in the gutters, a herd of all surviving rats flees the scene. Most hide in the closest shrubbery they find. Some scurry up other nearby palms. It can really blow your image of the Canary Island date palm.