Crow Observations

Hi Everyone,

Well, today, I saw a group of seven or eight crows, circling around
and cawing almost continuously. I first noticed this several years
ago, and during the same period of the year. Since that time, I've
observed the same behaviour, on many occasions.

I wonder why they do this at approximately the same time, each year?
So far, I haven't been able to discover a satisfactory answer.

I'll be back soon, with a crow photo.

Best regards,
Laurie