louisxiv wrote:
P.S. Maybe Zinnia attract certain grubs? Lord knows. It would be interesting
to know. Or maybe, after all, they just don't like the look of them?
I don't suppose there's any research been done on what colour spectrum
Starlings vision operates in?

I'm wondering whether, if it is different to ours, there may be
something about the IR or UV appearance of zinnias that makes them
conspicuously alarming to them or something...? I mean, they just look
green to us, but...

Cheers,
Robin
Cheshire, UK