I went outside at 12:30am to let my dogs do their thing for the last time befor sacking out. The dogs headed for the back of my property when all of a sudden a number of crows started cawing in a excited fashion from the front of the property and across the road, I have never heard crows cawing at night befor and wondered what set them off? The only thing I could think of was the possibility of an owl attacking one of the flock on the roost. Anybody have any other idea's or have you ever heard crows in the dead of night? The racket continued for about two minutes and then abruptly ended. It was too dark (no moonlight) to see if any of the crows were flying around but I doubt it as their calls sounded to remain in one area. Comments please.