Mystery bird
Who recognizes this hissing? It is the last sequence of a longer series of screeches and hisses heard at 3 a.m. in a larger area with meadows and old trees. Two animals were involved, which later moved away in two different directions. At first, they were calling in quick succession, when they were separated, at greater intervals. Because the recorded voice, as it came closer, came from above and moved very quickly (and otherwise silently), we wonder if an owl may have been behind it? Can anyone help solve the mystery? Thank you very much!