A little while ago I went to take out the garbage. I seemed to come across a continuation of the conversation. There were 2 crows on the ground, but the vocals seemed to be coming from the trees. Again, there was a crow talking in a high pitched voice and another crow talking in a lower pitched voice. The second crow seemed to be answering the first one.
From what I can tell, crows don't seem to have distinctive voices, except in the case of younger crows and adults. I do wonder why one was high pictched and the other crow spoke in a lower pitched voice. I know that differences in volume mean something. I do believe that differences in pitch and differences in intensity may mean certain things as well. Is there a hiearchy among the crows? I don't know. Does the difference in pitch come into play? I don't know. Crows are family birds. I have never read about hiearchy in crows. But is there a social hiearchy within a family of crows? What does this difference in pitch mean? It's going to be an interesting summer!
Update on 06/23/14: I found out that crows do have distinctive voices. Perhaps the difference in voices had nothing to do with social status. There is so much that I have to learn! All I know is that crows are fascinating and their language is complex!
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