[语言求助] good on nature 是什么意思啊？

Anyone trying to learn history from my diary would have a thin time. I recorded the deaths of John Lennon and Princess Diana but President Kennedy fell into the Pensées period and never got a look-in. My entry for 11 September 2001 consists of a rant at my husband for not thinking to ring me from work and tell me to switch the television on. Some people are SO INCONSIDERATE, I wrote in caps, while watching late-night replays of bodies tumbling through space. The price-of-a-loaf-of-bread stuff that social historians are so keen on hardly features, though there are some poignant entries in 1983 about whether a £40,000 mortgage would bankrupt us for life. But my diary is quite good on nature notes: the first time I saw a fox in the garden in 1986, the first time I saw a fox in the street, the first time I saw fox cubs in the garden, all recorded in excited detail. Now that I see foxes almost every day I never mention them. Would historians conclude that foxes came to London in the late Eighties then went away again? Perhaps I should write a note in my diary tonight clarifying the fox situation.