In 39-1 we hear a murder of crows shortly before Michael and Puck find Randy in the alley and Puck is ambushed.

Real Life. Crows will gather when a crow finds a lot of food in one place and is a lot more than it can eat. It will share the feast. So, is there a fresh piece of Carrion nearby?

Crow Talk = zombie talk. On several occasions we hear a crow sound that becomes a zombie. Do people hear something and attribute it to a crow?

Sometimes a crow is just a crow, but I think at other times what people think are crows are biters, but still others it is like a musical device. Even when we often hear them with Scratch, she is talking about "them". Leave the truck ( because we need it to attack ). She kills Charlie, but is also talking about how they are coming.

What I found most intriguing is the association with Marcus. I know, I know. People hate my Pegs - Marcus conspiracy, but this really is not place to rehash this