Crows are becoming more & more numerous as the weather warms up. Big flocks of them fly around, especially over the highways, looking for road kill. They fly in HUGE flocks. You’ll see a couple hundred fly overhead, & they’ll flap noisily away, until you can barely see them, & just when they’re about to disappear, a few hundred more show up. They do that until there must be about a thousand of them, & then they finally disappear. Crows are quite intelligent, & some, if raised by humans, can imitate human voices. The crows most common call is a series of harsh CAWs, but actually they have at least 20 different calls. (Although they all sound pretty close to the same thing to me.)Click on the link to hear them. http://www.allaboutbirds.org/guide/American_Crow/sounds. See See what you think.