One of the main reasons I left Ireland

was because within my lifetime
I witnessed the inexorable decline
of flora, fauna, mushrooms and fish
through that mean little island's
unwholesome agricultural devastation.
In my last years there in rural solitude,
earthworms  had given way to flatworms,
Agaricus campestris had vanished utterly
and, although I still saw the robin and wren
in my garden, and heard the blackbird sing,
I heard no cuckoo, no lark (though I'm going deaf)
and no swallows came to my barn in spring.

Agaricus campestris  (Field or Meadow Mushroom)