In contrast, here's 3 calls Lathe recorded from the Fish Crow, the caa note.
Finally, here's the ca-ha call from my video which you can hear in the fish crow post from earlier this month. The ca is composed of 2 short arcs similar to the caa note, though more symmetric, followed by the more pulsed ha note. This compares very favorably with the ca-ha sonogram in the Golden guide. The ca-ha is the call (song?) is supposed to be very specific for Fish Crow and not made by Americans.