I have often seen crows gather in large groups and have strange- and emotional-sounding conversations. I always wonder what the topic is, but I suppose the only way to know for sure it is a funeral is if there is a dead crow. I have never seen a dead crow in my neighborhood. However, I have seen a dead baby raven in the place on the mountain where I walk every day. It was at the foot of a tall tree and I assume that's where the nest was and it did not learn how to fly fast enough. For days, I heard the parents croaking and muttering in the trees overhead.