opera (birds)
This is a computer program that plays bird sounds. A rare bird might sing every day for a long period of time, but it is not likely. The probability that a blackbird or a chaffinch will sing during night time is small, but it might happen. Some days the jackdaw will sing together with the nightingale, other days with the magpie, or on its own, in solitude. Start the program and wait for the birds to start singing.
This is a webpage that plays bird sound. The bird sound follows some of the laws of nature and is also affected by the position of the sun. The composition is partly random. The singing comes from birds that are site specific and from birds that have been selected on esthetical grounds. This is an opera that will go on 24 hours a day.