rydhsys rag Kernow lemmyn!
Jane Turner said:Anyone interested in trends take a look at these...and the rest of the figures available from national census figures.
All figures normalised to 2000 figures. Trends are so much more revelaing than bare numbers.
Particularly notice the fantastic correlation between collared dove rise and song thrush and spotted flycatcher decline.. Clearly the former must be responsible.... then again it might just be a correlation and not a link.
Those evil pale invading pigeons...
(With a sense of due trepidation) Does anyone know what the sparrowhawk population was pre the 60's crash? The stabilising population suggests to simplistic me that (for whatever reason) they've plateau'd now - maybe to previous levels? Am sure the ecologists will take delight in shooting this dumb theory down in flames...