Large numbers of buzzards

There's been a large flock of buzzards coming through at sundown for the last two days.  They swirl around in long, looping circles, as they slowly progress onwards.  Curious.  There are upwards of 20 in the group.

We speculate about whether they're roosting nearby?

I'm thinking that I don't know that much about vultures, aside from their keen sense of smell and carrion-eating ways, but there's clearly a lot of interesting aspects to their behavior.  I'll have to learn more about them.

But, dinner needs to be cooked....