I've known strong cold fronts in January to trigger movements of hawks,
Common Grackles, and winter finches. I can't say I've noticed it for run of
the mill passerines. But maybe there is a point in time when half hardies
give up on that. Considering how few passerines I've been seeing at Jones
I've known strong cold fronts in January to trigger movements of hawks,
Common Grackles, and winter finches. I can't say I've noticed it for run of
the mill passerines. But maybe there is a point in time when half hardies
give up on that. Considering how few passerines I've been seeing at Jones
