The fae or a bird?

Hi everyone, sorry for always asking questions but I am a newbie so... As I started reading and learning I was really curious about the fae (of course). We probably exchanged gifts long time ago when I lived in another country and when I was little... But I had no idea of that was/could have been. So, no intention from me whatsoever.

Now, flash forward : I'm in a new house, another country.

So yesterday I left some petals and flowers and generally plants I did not want to dump in the bin. I felt like just giving them "to the wind".

Now, no intention of leaving offerings because if there is someone NOT interested into contacting Anything is me. Although, I remember thinking " let 's hope it does not get misunderstood".

Ten minutes ago I found something like a shell, I guess, on the window corner.

Now, it probably is a bird who might have dropped it...

Funny dynamics to find that position but who knows.

So, my question is: could they have been leaving that after my flowers, unintentional, offerings?

I think it probably is just a coincidence but, you know, I'm curious.

P. S. What I did : I said "that's really kind but I cannot accept it," I did not say " thanks". Also I left a seashell with honey in return. But left the "gift" there.

Just in case.

I cannot believe I'm actually posting this 😅

A